If you want one spool that handles almost any flexible job, OVERTURE TPU 95A is the best TPU filament in this roundup. It prints cleanly on direct-drive machines, layers bond tightly, and the rubber-like feel suits gaskets, phone cases, tyres and protective parts. For maximum softness, step down to an 85A grade such as AMOLEN, and for skin-contact parts pick the ISO 10993-tested Siraya Tech.
TPU (thermoplastic polyurethane) is the material rigid filaments cannot replace. Bend a PLA part repeatedly and it cracks; stretch a PETG hinge and the layers separate. TPU deforms, absorbs the load and springs back, which is why it shows up in phone cases, insoles, grips, gaskets, wearables, vibration dampeners and soft robotics.
There is one catch that trips up most first-time buyers: TPU is unforgiving on hardware. Soft filament kinks inside a Bowden tube, and very soft grades blur detail and string badly. Every entry below carries a direct-drive or Bowden verdict, plus the specs that actually matter at the slicer.
We weighed the ten spools below on extrusion consistency, layer adhesion, measured flexibility, real-world printability and how long they stay usable after the bag is opened. If you are still choosing a material rather than a brand, our hemp plastic and filament buying guide covers the other flexible and plant-based options. For the printers that pair well with a home TPU workflow, see our picks for compact desktop printers.
Top 3 Picks for the Best TPU Filament in 2026
All 10 TPU Filaments Compared Side by Side in 2026
| Product | Specifications | Action |
|---|---|---|
OVERTURE TPU 95A Flexible Filament 1.75mm |
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SUNLU TPU Filament 1.75mm 95A |
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AMOLEN TPU 85A Flexible Filament |
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ELEGOO TPU 95A Black 1KG |
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Geeetech TPU 95A Clear Blue 1.75mm |
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Siraya Tech Flex TPU 85A ISO 10993 |
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Comgrow TPU 95A Black 1kg |
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GIANTARM 95A TPU Black 1kg |
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Sovol TPU 95A Clear Filament |
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Creality TPU 95A Flexible 1.75mm |
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How We Judged TPU Filament for This Roundup
Five things decided every ranking here. Extrusion consistency tells you whether the diameter holds steady through a whole spool. Layer adhesion determines whether a bent part folds or snaps along a seam. Measured flexibility is the Shore grade and stretch figure, not marketing language.
Printability was weighted heavily, because the difference between a spool that prints on stock settings and one that needs a night of tuning matters more than any spec sheet. Drying and storage packaging decided the rest, since TPU is hygroscopic and an open spool degrades fast. Review volume was used as a tiebreaker for consistency, never as a quality score on its own.
1. OVERTURE TPU 95A – The Best TPU Filament Overall
OVERTURE TPU 95A Flexible 3D Printer Filament 1.75mm, 1kg Black
Shore 95A thermoplastic polyurethane
1kg spool
24-hour dried, vacuum sealed
Pros
- Consistent feeding with no clogging on Bambu and Creality machines
- Excellent layer adhesion with minimal stringing
- Rubber-like feel suited to tyres gaskets and protective parts
- Matte true black finish
- 1-year warranty
Cons
- Needs a hotter nozzle and slower speeds to dial in
- Slight shine on some parts instead of a fully matte look
- Occasional jams traced to oversized filament splices
This is the spool we keep coming back to. At Shore 95A it is soft enough to bend, stretch and absorb impact, yet stiff enough that printed parts hold their shape instead of collapsing. Across 2,259 reviews it carries a 4.7 rating, and reviewers repeatedly describe dependable feeding and a genuinely rubber-like surface.
The material ships 24-hour dried in vacuum-sealed foil with desiccants, which matters more than it sounds. Unopened spools carry a 1-year shelf life with proper storage, and users report clean first prints without a drying cycle. That removes the single most common cause of a bad first TPU experience.

The patented clog-free formulation matters on long jobs. Reviewers printing tires, gaskets and protective parts report dependable extrusion through entire spools with no bubbling or partial clogs. One long-running complaint is occasional jams, and at least one of those traced back to an oversized splice in the roll rather than the material itself.
How it behaves on a direct-drive extruder
This is where it earns the top spot. Direct-drive geometry keeps the filament compressed in a short path, and OVERTURE feeds smoothly through that path without the resistance that makes stiff extruders bog down. Bambu and Creality users report reliable results straight out of the box once the profile is loaded.
The honest part is tuning. Expect to raise nozzle temperature and drop print speed in your slicer before the surface quality settles. Vendor presets exist for the major printer brands, and after that first adjustment reviewers describe prints as repeatable every time.
What to weigh before you buy
Check the colour first. The matte black is genuinely matte, but some parts come out with a slight shine, so it is not the finish to pick if a rubbery look is the whole point of the part.
Second, confirm your printer is direct-drive and not a Bowden setup with a long PTFE tube. At 95A this spool is more forgiving than an 85A, but soft filament and a long feed path still fight each other. If you have never printed flexible before, budget an evening for the profile rather than a weekend.
For how filament is dried and stored before and after opening, the steps in our filament care and cost guide apply directly to this spool.

2. SUNLU TPU 95A – Built for Fast Prints
SUNLU TPU Filament 1.75mm,(1kg,Black,95a TPU)
Shore 95A thermoplastic polyurethane
80-120mm/s print speed
Vacuum-sealed 1kg spool
Pros
- High-speed formulation printed at up to 3x ordinary TPU speeds
- Recommended 80-120mm/s keeps large jobs moving
- Forgiving 210-230C window needs little tuning
- Strong layer adhesion with a matte finish
- Low 50-60C bed temperature simplifies first layers
Cons
- Stringy on travel-heavy models with many moves
- Firmer rubbery feel on large parts
- Loose winding is typical of TPU spools
If your bottleneck is print time, this is the one. SUNLU markets a high-speed formulation at up to three times the speed of ordinary TPU, with a recommended window of 80-120mm/s. That is a real difference on a large flexible shell or a batch of grips, where 95A normally forces you to crawl.
The rating is 4.6 across 2,675 reviews, with reviewers calling out smooth, jam-free extrusion and layer bonding strong enough that grips and magazine pulls did not delaminate. The 210-230C nozzle range is wide, so a slicer default lands close enough to work without hunting for the right temperature.

Bed temperature sits at 50-60C, lower than many flexible profiles, which makes the first layer easy to set on a cold-ish PEI sheet. One review describes printing near 220C with minimal tuning, which is the honest experience here: the material does the work for you.
Where stringing shows up and how much it matters
Stringing is the most common criticism, particularly on detailed models with a lot of travel moves. That is normal TPU behaviour rather than a defect, and most reviewers treat it as cleanup work rather than a print failure.
Two habits tame it. Printing at the lower end of the speed range reduces travel stringing noticeably, and a wipe or combing pass on the first layer helps. If the stringing appears immediately on a fresh spool, dry the filament before changing anything else.
What this spool is not ideal for
The rubbier feel reads as firm on larger cross-sections, so parts that need to drape or conform tightly are better served by an 85A grade. If your design depends on softness rather than durability, move down the Shore scale.
Also check your feed path before buying for a Bowden machine. At 95A this is more tolerant than soft TPU, but the fast flow rate can expose kinking in a long tube. Direct drive keeps the advantage intact.

3. AMOLEN TPU 85A – The Softer Pick for Cushioning
AMOLEN 85A TPU 3D Printer Filament 1.75mm Soft Flexible Filament, Tough & Durable, Easy to Print for Shoes, Insoles, Protective Gear, Grips, Cushions & Flexible Parts, Black 1kg
Shore 85A flexible TPU
1kg spool
Direct-drive extrusion recommended
Pros
- 85A softness built for insoles and wearable comfort parts
- High rebound returns shape after repeated compression
- Surface conformity suits grips and anti-slip pads
- Fatigue resistant for straps bumpers and flexible hinges
Cons
- 85A demands a direct-drive extruder and careful tensioning
- Needs thorough drying and sealed storage
- Demands more profile work than a 95A spool
Eight of the ten spools here are 95A, and this is one of the two 85A grades. At Shore 85A the filament compresses under a thumb and rebounds toward its original shape, which is what an insole, a grip wrap or a bumper needs and what a 95A spool refuses to do.
Reviewers single out high rebound under repeated compression and the way the surface conforms to curved bodies. Fatigue resistance across repeated bending and stretching is the other headline, which matters for flexible hinges and straps that flex thousands of times.

The rating is 4.3 across 1,180 reviews, which is a step below the 95A leaders. That gap is not a quality failure so much as the softer end of the range being a harder material to feed and finish. Details soften, and thin walls start to look soft rather than crisp.
When softness is worth the setup cost
Choose this grade when the part touches skin or needs to conform. Insoles, shoe components, wearable straps, grips and anti-slip pads all benefit from the compression behaviour of 85A. Protective bumpers that cushion a drop get the same benefit.
Skip it when surface detail matters more than give. Buttons, tight-fitting clips and fine mechanical parts look better in a 95A spool, where the layer lines stay defined and the part returns crisply to shape.
Hardware limits to check before printing
Direct-drive extrusion is recommended, and 85A is where Bowden setups start to fail visibly. A soft filament compressed in a long PTFE tube can kink and buckle, and the kink then feeds into the hot end as a jam.
Careful tensioning on the extruder gear matters too. Too loose and you get slip and under-extrusion; too tight and you grind the filament. Dry the spool thoroughly before the first print and reseal it afterwards, because a soft grade absorbs moisture faster than a firm one and moisture shows up as popping and weak layers.

4. ELEGOO TPU 95A – Stretches Up to 5x Its Length
ELEGOO TPU 3D Printer Filament 1.75mm Black 1KG, 95A Flexible
Shore 95A thermoplastic polyurethane
Stretches up to 5x
Pre-dried and vacuum sealed
Pros
- Stretches up to 5x its original size without breaking
- Outstanding impact resistance for dropped and collided parts
- Plugs into generic TPU presets with no tuning reported
- Minimal stringing once the spool is dried
- Rarely clogs across long uninterrupted prints
Cons
- Stringing returns if the spool is not dried first
- Firm rather than soft so better for bushings than grips
- One report of a feeder jam needing tension plate removal
This is the impact-resistant pick. The listed stretch figure is up to five times the original size without breaking, and reviewers compare the finished parts to aftermarket suspension bushing material. For anything that gets dropped, squashed or repeatedly compressed, that combination of stretch and toughness is the point.
The 4.6 rating across 645 reviews comes with 85% five-star ratings, the second-highest share in this group. The most common remark is that it works on default settings: one reviewer plugged it into generic TPU presets on a Bambu A1 and printed without touching a single value.

Surface quality comes out smooth and glossy rather than matte, with clean layer bonding. The spool arrives pre-dried and vacuum-sealed, which is why so many reviewers stress drying as a habit rather than a rescue step for this material.
How it prints on a default profile
This is the least demanding of the ten in terms of tuning. The temperature window is forgiving and the dimensional tolerance is tight enough that standard flow rates hold, so most people print it once with the default flexible profile and move on.
The trade-off is feel. Reviewers describe it as firm rather than very soft, which is a fair description for a 95A. Bushings, bumpers and impact strips take full advantage of it, while anything meant to feel squishy in the hand wants an 85A spool instead.
Feeder and drying checks worth doing
One review reported a feeder jam on a Neptune 4 Max that required removing the feeder tension plate. That is a printer-side fix rather than a filament defect, but it is worth knowing that the material is stiff enough to load a gear path hard.
Drying is the single most repeated tip in the reviews. A spool that has been open picks up moisture and stringing appears quickly. Print from a dry spool, reseal it immediately after, and the clean surface finish returns.

5. Geeetech TPU 95A – The Widest Range and the Most Reviews
Geeetech TPU Filament 1.75mm, Shore 95A Flexible 3D Printer Filament with High Elasticity, 1KG (2.2lbs) Spool, Dimensional Accuracy ±0.03mm, Fits Most FDM Printers, Clear Blue
Shore 95A plus or minus 2
1.75mm plus or minus 0.03mm
Nozzle 180-210C, bed 50-70C
Pros
- Largest review base here at 6529 ratings
- Wide colour and multi-spool selection
- CCD diameter inspection for plus or minus 0.03mm accuracy
- Users report no crackles or moisture signs without drying
- Works on high-flow delta and Bowden setups with flow compensation
Cons
- Loose winding can snag on printers without run-out detection
- Clear variant is less clear than the name suggests
- Shared review sections mix in ratings for PLA and PETG lines
Geeetech is the volume pick. At 6,529 ratings it has by far the largest review base in this roundup, and users consistently report consistent extrusion, strong layer bonding and durability in functional parts such as scooter tyres, phone cases and light caps. The material is rated at 95A plus or minus 2.
Dimensional accuracy is specified at plus or minus 0.03mm at 1.75mm, verified by a CCD diameter inspection system. Recommended temperatures are 180-210C for the nozzle and 50-70C for the bed, at 20-40mm/s, which is a slower default profile than the high-speed spools here.

Two details stand out. The patented clog-free formula is pre-dried for 24 hours and vacuum-sealed with desiccants, and reviewers report no crackles or moisture signs even without drying. And storage humidity below 20% RH is the stated recommendation, which is a useful target for anyone in a humid climate.
Whether it will feed through a Bowden tube
This is the one spool in the roundup that reviewers explicitly report printing on Bowden setups and high-flow delta machines, provided flow compensation is corrected. The 180-210C window is wide enough to tune around a restrictive path.
That makes it a reasonable first TPU purchase for someone whose printer came with a Bowden tube. Expect stringing, expect a slower profile than 40mm/s, and expect to spend an evening on the profile before parts come out clean.
What to check when the spool arrives
Loose winding is the recurring complaint, and it can snag on printers without filament run-out detection. Winding is a common trait of TPU spools rather than a fault specific to this one, but a machine with a run-out sensor handles it far better.
The clear variant also draws comments that it is less clear than the name implies. If transparency is the goal for a lens or protective window, test a small section first or choose a spool with clear material claims in its listing.

6. Siraya Tech Flex TPU 85A – Tested for Skin Contact
Siraya Tech Flex TPU 85A 3D Printer Filament, ISO 10993 Tested, Black, 1kg
Shore 85A flexible TPU
Tested to ISO 10993-10, -5 and -23
1kg spool
Pros
- Tested to ISO 10993-10
- -5 and -23 biological response protocols
- High-flow formula prints faster than typical 85A
- Moisture-resistant resealable bag with a 3-year shelf life
- Users rate the feel as more realistic than 95A
Cons
- Not suited to Bowden tubes or multi-material AMS at this softness
- Needs slower speeds and thorough drying before use
- Some spools wound too tightly causing under-extrusion
ISO 10993 testing is the reason to buy this one. The filament is tested to the -10, -5 and -23 protocols for biological response data, which is meaningful documentation for wearables, orthotics and anything meant to sit against skin for hours. No other spool in this roundup carries that testing.
The rating is 4.5 across 374 reviews. Enthusiasts describe the finish as more genuinely rubber-like than 95A, and reviewers who compare soft filaments directly rate this one highly for seals, tyres and footwear. The review base is smaller than the 95A leaders, which is the trade for the certification.

The high-flow formulation is the quiet advantage here. Reviewers report good results at 30mm/s on a suitable direct-drive machine, which is faster than most 85A material manages without losing surface quality. Packaging is a resealable aluminium bag with a claimed 3-year shelf life, so an open spool stays usable far longer than a loose bagged roll.
Why ISO 10993 matters for a printed part
The standard covers biological response testing for materials that contact the body, which makes it a better basis for a skin-contact decision than a marketing claim. It does not mean the finished print is medically certified, since printing conditions and layer adhesion both matter, but it tells you the raw filament was evaluated.
For wearables, insoles, grip wraps and orthotic shells, that documentation is worth real money if you are building something for other people. For a phone case or a bumper, it is overkill and the 95A spools are cheaper choices for the job.
Where this spool will frustrate you
Hardware is the recurring caveat in the reviews. At 85A this filament is not suited to Bowden tubes, and reviewers also rule out multi-material AMS systems at this softness. That narrows the machine list to direct-drive printers.
Two more practical notes. Slow the print speed down if layer bonding looks weak, and dry thoroughly before the first print. A few spools have been wound too tightly, which stretches the filament on pull and leads to under-extrusion. Both are solvable; neither is fixed by the slicer alone.

7. Comgrow TPU 95A – The Tightest Diameter Tolerance
Comgrow TPU Filament, 1.75mm, 95A Soft TPU Flexible 3D Printer Filament Black 1kg (2.2lbs), Dimensional Accuracy +/- 0.02 mm, Fit Most FDM Printer
Shore 95A thermoplastic polyurethane
Plus or minus 0.02mm at 1.75mm
Nozzle 210-230C
Pros
- Tightest documented tolerance here at plus or minus 0.02mm
- Soft 95A durometer bends well while holding structure
- 1kg spool supports extended printing sessions
- Straightforward entry point for flexible printing
Cons
- Best suited to direct-drive extruders
- Less tolerant of long Bowden paths than some rivals
- Fewer documented colour options than major brands
Diameter consistency is what separates a spool that prints cleanly from one that needs constant flow adjustment, and this is the tightest documented figure in the group at plus or minus 0.02mm on 1.75mm filament. That is a small enough window that standard flow rates hold across most of the spool.
The rating is 4.5 across 1,904 reviews with 77% five-star ratings. The listing positions it as an affordable option for functional flexible parts, and the soft-but-durable 95A durometer is described as bending well while retaining structural integrity.

Recommended nozzle temperature is 210-230C, and the material works with most FDM printers equipped with direct-drive extruders. The 1kg spool size is standard, which matters more than it sounds when a flexible job eats material faster than a rigid one.
When tight tolerance actually helps
Small holes, thin walls and moving assemblies punish diameter variance. A consistent 1.75mm feed means the extruder pressure stays stable, layer lines stay even and a part that flexes repeatedly does not crack along an inconsistent seam.
It also shortens tuning. Because the diameter is already in tolerance, flow rate and temperature settings that work on the test square keep working on the 200-layer print. That saves the slow creep of constant adjustment that flexible filament normally demands.
Setup limits and colour range
The listing states direct-drive extruders and notes less compatibility with long Bowden paths than some alternatives. At 95A it will still feed through a tube, but expect a longer tuning session and more stringing than on a short feed path.
Fewer colour options are documented here than for the major brands, so if your project needs a specific colour or a translucent variant, check availability before you commit. The black spool is the well-documented one.

8. GIANTARM 95A TPU – Stretch With Low Warp
GIANTARM 95A TPU 3D Printer Filament 1.75mm, 1kg Spool, Black, +/- 0.03mm
Shore 95A thermoplastic polyurethane
Stretches to 3x its length
1kg spool, black
Pros
- Stretches to roughly 3x its original length
- Low warp with good bed adhesion and minimal odor
- Clog-free patented formula dried 24 hours then vacuum sealed
- Mechanical winding reduces tangles and filament breaks
- Works on most desktop FDM printers
Cons
- Tolerance of plus or minus 0.05mm is looser than the tightest rivals
- Rating spread is the widest here with 10% one-star reviews
- Some roll-to-roll inconsistency compared with tighter-rated spools
Stretch and stability are the two things this spool does well. The listed figure is up to three times the original length, and reviewers pair that with low warp, good bed adhesion and minimal odor, which is a combination that matters on tall thin prints that would otherwise curl off the bed.
At 3,732 ratings and 4.3 stars it is one of the higher-volume listings here. Buyers praise the stretch and the clean bed behaviour for everyday flexible parts, and the mechanical winding process is credited with fewer tangles and line breaks than loosely wound spools.
How the winding matters more than it sounds
A loosely wound spool is the most common cause of a TPU jam that has nothing to do with the material. The filament crosses itself on the spool, catches on a guide, and the printer either stops or grinds it. Mechanical winding plus manual inspection directly reduces that failure mode.
If you have already lost a print to a tangled spool, that difference alone justifies choosing between otherwise similar spools. It is also why printers with run-out detection handle this material less gracefully when winding is poor.
Trade-offs to weigh before buying
The documented tolerance is plus or minus 0.05mm, looser than the plus or minus 0.02-0.03mm figures on most rivals here. In practice that shows up as slightly more flow variation on long prints, not as failed prints.
The rating spread is the wider one, with 10% of reviews at one star, which points to more roll-to-roll inconsistency than the tighter-rated spools. If a specific colour or finish matters to the project, buy one spool first and check it before committing to a multi-spool run.
9. Sovol TPU 95A Clear – For 3D Pens and Clear Parts
Sovol 3D Printer TPU Filament 1.75mm, 95A Soft TPU Flexible Material, Clear
Shore 95A clear TPU
Plus or minus 0.03mm at 1.75mm
Nozzle 220C, bed 50-70C, 60mm/s
Pros
- Clear 95A material suits see-through parts and pen work
- Large spool inner hub diameter improves feeding reliability
- Recommended 220C nozzle and 60mm/s give a simple target
- Users report minimal warping and clogging
Cons
- Smallest review base here at 273 ratings
- Clear colour limits visibility of fine surface detail
- 60mm/s ceiling is below the high-speed spools
Clear TPU has a narrow use case and this spool serves it well. The material is a Shore 95A in a transparent formulation, which makes sense for pen work, protective windows and any part where you want to see the mechanism behind the surface.
The recommended profile is refreshingly simple: 220C nozzle, 50-70C bed, 60mm/s. Diameter tolerance is plus or minus 0.03mm at 1.75mm, and buyers cite easy printing with low warp and good layer bonding across the board.

One design decision stands out. The spool uses a larger inner hub diameter, which spreads the filament more evenly around the core and smooths the feed. Feeding reliability is the quiet reason a spool works on machines where another does not.
Where clear TPU is worth the choice
Reach for this when light needs to pass through the part, or when you are drawing freehand with a 3D pen. Flexible pen models behave better in 95A clear than in a firm opaque plastic because the pen feeds pressure into the nozzle and the material has to give.
For opaque functional parts, though, one of the black spools is the better buy. Clear filament hides nothing about print quality but also shows nothing when you are judging surface finish, so it is a poor choice if appearance is the goal.
What the smaller review base means for you
At 273 ratings this has the least long-term field data in the roundup, so expect less evidence about spool-to-spool consistency over a year of use. Reviewers who have printed with it report minimal tolerance problems, warping, odor, clogging and bubbling.
Fine surface detail is also harder to judge on a clear part. If you are printing a visible decorative piece rather than a mechanism, test a small flat panel first to check the surface before committing to the full part.

10. Creality TPU 95A – Gloss Finish and Chemical Resistance
Creality TPU 95A Flexible 3D Printer Filament 1.75mm, 1kg Black
Shore 95A thermoplastic polyurethane
1kg black spool
Water, oil and solvent resistant
Pros
- Water
- oil and solvent resistance for workshop and outdoor parts
- Nontoxic material with good chemical resistance
- Strong resistance to wear and scratching plus aging and UV
- Smooth high-gloss surface finish
- 12-month warranty with 24-hour after-sales service
Cons
- Lowest average rating in the group at 4.2 stars
- Highest share of one-star reviews at 12%
- Glossy finish is not suited to a matte rubbery look
This is the chemical-resistance pick. The material is listed as resistant to water, oil and solvents, and reviewers note good interlayer bonding with a smooth, glossy surface. For workshop parts, grips that handle oily tools, or anything that sits outdoors in UV, those properties matter more than Shore number.
It also carries wear, scratch, aging and UV resistance, and is described as nontoxic. The rating is 4.2 across 570 ratings, the lowest aggregate score in this roundup, with 12% of reviews at one star pointing to more variability between spools.

Compatibility is broad and the warranty is 12 months with 24-hour after-sales service, which is useful if a spool behaves inconsistently. Storage guidance is a dry, ventilated environment away from heat, sun and humidity, which for TPU is not optional advice.
How the rating spread should change your plan
A 12% one-star share means you may need to try a second spool. That is a normal outcome for flexible filament, where a single bad roll can produce popping and weak layers that look like a settings problem. Before blaming the profile, dry a fresh roll and test it.
Compare that to the tighter-rated spools in this roundup, where inconsistency is rarer. If your project has a hard deadline or a part you cannot reprint, the more consistent options are worth the swap.
Finish and application fit
The glossy surface is the deliberate look here. It reads more like a rubbery automotive trim than a matte utility filament, which suits bezels, trim pieces and visible parts. If you want a flat, dusty-matte appearance, this is the wrong spool and a matte black option will suit better.
For oil and solvent exposure, it is the strongest entry here. For pure softness, an 85A grade wins outright. For consistent feeding across many spools, look at the higher-rated 95A picks instead.

How to Choose TPU Filament: Shore Hardness, Printer Type and Drying
Choosing the best TPU filament comes down to three questions in order: how soft does the part need to be, what extruder do you have, and how much stress will the part see. Hardness sets softness, the extruder decides whether soft material will even feed, and stress decides whether 95A is enough.
How soft do you need to go? Shore hardness decoder
Shore A is the soft elastomer scale and Shore D is the rigid plastics scale. Lower numbers on the A scale mean softer, stretchier material. Every spool in this roundup is 95A or 85A on the A scale, which is the practical range for home FDM printers.
- 95A – the all-rounder. Bends, takes impact, holds a shape. The right default for gaskets, phone cases, bumpers and functional parts.
- 85A – noticeably softer. Better compression, cushioning and conformity for insoles, grips, wearables and anti-slip pads.
- 70A to 75A – the softest commercially available grades, and the hardest to print. In one r/3Dprinting thread, NinjaTek Chinchilla 75A is described as one of the softest readily available filaments, with ColorFabb Varioshore named as the likely softest alternative at maximum foaming.
Is TPU 90A or 95A more flexible? 90A, because a lower Shore number means a softer material, but the difference between 90A and 95A is subtle compared with the jump from 95A to 85A. If you can feel a difference between two grades, it is probably the ten-point step, not the five-point one.
Hardness alone does not decide how a part feels. Geometry, wall thickness, infill and print orientation often outweigh the Shore number. A thin-walled 95A hinge bends further than a thick-walled one, which is why printed flexible hinges can work in material that feels rigid in your hand.
Direct drive or Bowden: the hardware question
TPU needs to be pushed through the extruder continuously. In a direct-drive setup that push path is a few centimetres, and the material compresses easily. In a Bowden machine, the filament travels the length of a PTFE tube under the same pressure, and anything below about 95A tends to buckle and kink.
Our rule of thumb across these ten spools: 95A spools such as Geeetech and SUNLU are the most likely to feed through a tube, while 85A spools such as AMOLEN and Siraya Tech need direct drive. If you own a Bowden printer and want soft material, a tube liner or a direct-drive conversion removes the main barrier.
Also confirm your extruder can handle the drag. A dual-drive gear set with strong grip helps at 95A and is close to essential at 85A. Too little grip and the filament slips; too much and it grinds.
Drying and moisture management
TPU is hygroscopic. It absorbs water from the air, and wet filament pops, strings, bubbles and prints with weak layer adhesion. Every spool here arrives dried and vacuum-sealed, which buys you time but does not remove the problem after the bag is open.
- Dry 95A spools when the bag has been open. Four to six hours at a moderate temperature is usually enough. Dry immediately if you notice popping or persistent stringing on a spool that printed cleanly before.
- Dry 85A spools before every first use. Soft grades absorb moisture faster, and the symptoms are more damaging. Budget the time before you start a long print rather than after it fails.
- Use resealable packaging. Spools that come in foil or aluminium bags with desiccants keep filament usable far longer than a loose spool. Siraya Tech and OVERTURE both ship in resealable bags.
- Store cool and dry, away from direct sun. Aim for low humidity in the room. Geeetech recommends storage below 20% relative humidity, which is a reasonable target for anyone in a damp climate.
- Print from a dry box if you print rarely. A sealed container with fresh desiccant is the simplest way to keep an opened spool printable between projects.
Starting settings by grade
Every flexible print needs three settings adjusted before anything else: nozzle temperature in the 210-235C region, print speed reduced from rigid-material defaults, and retraction either disabled or set to a very short distance on a direct-drive extruder. Flexible filament that retracts normally tends to stretch and buckle on the way back.
A good starting point across these spools is 220C, 30-60mm/s, no retraction on direct drive, and a bed between 50-70C. SUNLU tolerates much faster speeds than that, while Siraya Tech at 85A wants the slower end. Every filament maker publishes a wider recommended window than the one you should start from.
TPU Failure Modes and How to Fix Them
Almost every TPU problem is one of four things, and all four are fixable. Work through them in order rather than changing five slicer values at once, because TPU responds badly to random tuning.
Stringing between parts and along travel moves
Stringing is the most common complaint and the least serious. Fix it by drying the filament first, then lowering the nozzle temperature a few degrees, then reducing print speed. On a direct-drive extruder, disabling retraction entirely often cleans up travel stringing more effectively than tuning it.
Blobbing and gaps on sharp corners
Blobbing at corners and star-shaped gaps on the first layer are both flow problems. Increase extruder pressure through slower first-layer speed, raise nozzle temperature slightly, and confirm your flow rate matches the machine. On a 95A spool, a slightly hotter nozzle and a longer first layer usually resolve it.
Jams, kinks and under-extrusion
If the filament kinks in the feed path, the cause is hardware: a Bowden tube carrying too-soft material, or extruder tension set too high. Replace the PTFE tube with a liner, reduce gear tension, or move to direct drive. If the filament grinds instead, the tension is too low.
If flow stops mid-print without a kink, look at the spool first. A loose winding catches on a guide, and an oversized splice stops the feeder. Trim the filament at the splice before blaming the profile.
Layer separation when the part is bent
Layer separation in a bent part is either a temperature problem or a speed problem. Raise nozzle temperature by five degrees and drop speed, because layer adhesion depends on the previous layer staying above its glass transition. Slow the outer perimeters first if you only want to protect the bend points.
Check geometry too. A part bent across the layer direction delaminates far more easily than one bent along it, so reorienting the model in the slicer sometimes fixes what temperature cannot.
TPU vs TPE vs Soft PLA: Which Flexible Filament to Buy
TPU is not the only flexible filament, and the other two options trade something real away. TPE is a similar thermoplastic elastomer that prints more easily than TPU but usually delivers less durability and less consistent feeding across brands. Soft PLA is the easiest to print of the three and the least durable, with a lower heat tolerance and a tendency to be harder to recycle.
Our decision rule: choose TPU for functional parts that see stress, abrasion, oil or repeated flexing. Choose TPE when easy printing matters more than long-term wear, or when you are iterating on a design. Choose soft PLA for quick models, toys and fit checks where the part will be printed once and discarded.
None of the three sand well. TPU and flexible filaments in general will not sand to a smooth finish the way rigid PLA or ABS does, and a painted rigid coat can crack when the part flexes. Design the surface finish into the model instead of planning to sand it afterwards.
Frequently Asked Questions
Which TPU filament is the most flexible?
Lower Shore A numbers mean softer, more stretchy filament. The softest grades readily available sit in the 70A to 75A range, and 85A is the softest grade in this roundup, used by AMOLEN and Siraya Tech. Those softest filaments are also the hardest to print: details blur, stringing is persistent, and a direct-drive extruder becomes essential. NinjaTek Chinchilla 75A is widely described online as one of the softest readily available options, with ColorFabb Varioshore as a common alternative.
Is TPU 90 or 95 more flexible?
TPU 90A is slightly more flexible than TPU 95A, because a lower Shore number means a softer material. The difference between 90A and 95A is subtle in the hand. The noticeable step is between 95A and 85A, where compression, cushioning and surface conformity change clearly. For most functional parts, 95A is the best balance of flexibility and clean printing.
What filament is best for flexible prints?
TPU is the best all-round answer for flexible prints, and 95A is the right starting Shore grade for most functional parts such as gaskets, phone cases, bumpers and vibration dampeners. Move to 85A when you need maximum softness for insoles, grips or wearables. Choose TPE instead when easy printing outweighs durability, and soft PLA for quick throwaway models.
How do I get TPU more flexible?
Five levers, in order: choose a lower Shore hardness grade, thin the part geometry, reduce infill and wall thickness, lower nozzle temperature slightly to reduce flow, and print long thin sections rather than thick blocks. Part geometry often matters more than the material. Note that very soft filaments print worst, so expect less detail as flexibility increases.
Can TPU filament be used on a Bowden extruder?
Some 95A grades can, some cannot. Stiff 95A spools with a wide temperature window are the most likely to feed through a PTFE tube with flow compensation and slower speeds. Anything at 85A or softer is very likely to kink and jam in a Bowden path, so a direct-drive extruder or a tube liner is the practical route to soft material.
The Best TPU Filament Verdict for 2026
OVERTURE TPU 95A is the best TPU filament overall in 2026, because it layers bond tightly, feeds predictably on direct-drive machines and arrives dried and vacuum-sealed. It costs you an evening of tuning, which every flexible filament in this roundup does.
Pick by use case from there. SUNLU 95A if print speed matters, ELEGOO 95A for impact and bushings, Geeetech 95A for colour choice and Bowden tolerance, Comgrow 95A for the tightest diameter control, and GIANTARM 95A for stretch with low warp. Go softer with AMOLEN 85A for grips and insoles, Siraya Tech 85A for skin-contact parts, Sovol clear for 3D pen work, and Creality 95A for gloss and oil resistance.
Before your first flexible print, confirm your extruder is direct drive if you are choosing an 85A spool, and dry whatever filament you open. Those two checks solve most of the problems beginners hit.









