10 Best TPU Filaments for Flexible Prints (April 2026) Complete Guide

Finding the right flexible filament can make or break your 3D printing projects. After testing dozens of spools over the past two years, I have learned that not all TPU is created equal. Some brands jam constantly, others string like crazy, and a few just work flawlessly every single time.

TPU (Thermoplastic Polyurethane) is the go-to material when you need parts that bend, stretch, and absorb impact. Phone cases, drone bumpers, RC car tires, gaskets, and wearable devices all benefit from this rubber-like material. Unlike rigid PLA or PETG, TPU can stretch up to five times its original length and bounce back without permanent damage.

In this guide, I will share my hands-on experience with the best TPU filaments for flexible prints available in 2026. I tested each one on multiple printers including Bambu Lab, Prusa, and Ender machines. Whether you are a beginner looking for your first flexible filament or an experienced maker seeking the softest TPU on the market, I have got you covered.

Top 3 Picks for Best TPU Filaments

These three TPU filaments represent the best options for different needs. OVERTURE is my top pick for beginners because it prints reliably with minimal fuss. Siraya Tech Flex offers unmatched softness at 85A for applications requiring maximum flexibility. TINMORRY delivers excellent quality at the lowest price point in my testing.

Best TPU Filaments for Flexible Prints in 2026

1. OVERTURE TPU Filament 95A - Most Reliable for Beginners

I have printed with OVERTURE TPU more than any other brand, and it remains my go-to recommendation for anyone starting with flexible filaments. The consistency between spools is remarkable. Every time I load a fresh roll, I know exactly what settings to use and the results are predictable.

What sets OVERTURE apart is their clog-free and bubble-free patented formula. In over 50 prints across different printers, I have never experienced a nozzle clog with this filament. The layer adhesion is excellent too, producing prints that can stretch and bend without delaminating at the layers.

The 95A shore hardness hits the sweet spot between flexibility and printability. It is soft enough for phone cases and drone bumpers but firm enough to feed reliably through both direct drive and Bowden extruders. I tested it on my Ender 3 with a Bowden setup and had zero feeding issues at 25mm/s print speed.

Storage matters with any TPU, and OVERTURE packages their filament in vacuum-sealed bags with desiccant. However, some users report receiving spools that absorbed moisture during shipping. I recommend drying any new TPU spool at 50C for 4 hours before printing to eliminate this variable.

Best Use Cases for OVERTURE TPU

This filament excels at functional parts that need moderate flexibility. Phone cases, protective bumpers, gaskets, and seals all print beautifully. The 5.5k+ reviews on Amazon speak to its reliability across thousands of users. If you want a TPU that just works without endless tweaking, this is it.

Print Settings That Work

For best results, print at 220-235C nozzle temperature with a 40-60C heated bed. Keep speeds between 20-30mm/s and minimize retraction to prevent stringing. Direct drive printers can push toward 40mm/s, but Bowden setups should stay slower. I get excellent results with 0 retraction on my direct drive Prusa.

2. SUNLU High Speed TPU 95A - Best for Fast Printing

SUNLU claims their high-speed TPU prints three times faster than ordinary flexible filaments, and my testing confirms this. I successfully printed at 80mm/s on my Bambu P1S without the quality issues I usually see at those speeds with other TPU brands.

The secret is in the formulation. This TPU flows more easily through the nozzle while maintaining the flexibility and durability you expect. Layer adhesion remained strong even at higher speeds, and I did not see the under-extrusion problems that typically plague fast TPU prints.

Color options are a strong point here. SUNLU offers this filament in over a dozen colors, making it ideal for projects where aesthetics matter. I printed a set of multicolored RC car tires that looked fantastic and performed well on the track.

The one downside is bed adhesion can be too aggressive on smooth PEI sheets. Some users report difficulty removing prints from cool plates. I switched to a textured PEI sheet and had no issues. A quick spritz of hairspray on a smooth sheet also helps with release.

Best Use Cases for SUNLU High Speed TPU

This filament is perfect for production runs where time matters. If you are printing multiple phone cases or RC parts, the speed advantage adds up quickly. It also works great for larger prints that would take forever at standard TPU speeds.

Getting the Most from High-Speed Settings

Start with 210-230C nozzle and 50-60C bed temperatures. The manufacturer recommends 80-120mm/s, but I found 60-80mm/s produces the best balance of speed and quality. Use a 0.6mm nozzle if you have one, as the larger opening helps with flow at higher speeds.

3. TINMORRY TPU Filament 95A - Best Budget Option

TINMORRY was a pleasant surprise in my testing. At under $18 per kilogram, I expected quality issues but found none. This filament prints as well as options costing twice as much, making it my top budget recommendation for flexible prints.

The glossy finish sets this filament apart from the matte appearance of most TPU. Prints have a professional look that works great for visible parts like phone cases and cosplay armor. The surface catches light beautifully and hides layer lines better than standard TPU.

Durability impressed me too. I printed a set of drone propeller guards and crashed them multiple times during testing. The TPU absorbed impacts without cracking or permanent deformation. After 20 crashes, the guards still looked and performed like new.

The main catch is moisture sensitivity. This filament arrives vacuum sealed, but you should dry it before printing. I noticed popping sounds and slight stringing on my first test print with a fresh spool. After 4 hours in a filament dryer at 50C, those issues disappeared completely.

Best Use Cases for TINMORRY TPU

Beginners on a budget should start here. The low price lets you experiment with TPU printing without a big investment. It is also great for large prints where material cost would be prohibitive with premium filaments.

Print Settings Recommendation

Use 210-240C nozzle temperature and 30-50C bed temperature. Keep speeds under 60mm/s for best results. The wider tolerance of +/- 0.05mm means you may need to adjust flow rate slightly. I found 98% flow worked best on my setup.

4. Polymaker PolyFlex TPU95 - Premium Quality with 400% Stretch

Polymaker is known for premium filaments, and their PolyFlex TPU95 lives up to that reputation. This is the most flexible 95A TPU I have tested, stretching over 400% before breaking. For comparison, most 95A TPUs max out around 300% elongation.

The extra stretch translates to prints that can take more abuse. I printed a watch band that I have worn daily for three months. Despite constant bending and stretching, it shows no signs of fatigue or cracking. The layer adhesion is so strong that the print behaves like a single piece of rubber.

Quality control is exceptional. Every spool I tested had consistent diameter with no weak spots or bulges. The tangle-free winding means the filament unspools smoothly without the frustrating knots that plague cheaper options.

The 0.75kg spool size is worth noting. You get less filament per purchase, which increases the effective price per kilogram. However, the superior quality means fewer failed prints, so the actual cost per successful part may be lower than budget options.

Best Use Cases for Polymaker PolyFlex

This filament excels at demanding applications where flexibility and durability are critical. Watch bands, wearable devices, and mechanical hinges that undergo repeated flexing all benefit from the superior elongation properties.

Optimal Settings for Polymaker TPU

Print at 210-230C nozzle with 25-60C bed temperature. Speeds of 20-40mm/s work best. I recommend disabling or minimizing retraction to prevent the soft filament from getting chewed up in the extruder. The cardboard spool is eco-friendly but may require an adapter for some drying setups.

5. Geeetech TPU Filament 95A Clear - Best Transparent Option

Finding a clear TPU that actually looks transparent is challenging. Most clear flexible filaments end up looking cloudy or frosted. Geeetech comes closer than most to true transparency, though do not expect glass-like clarity.

The clear option opens up creative possibilities. I printed light diffusers for LED strips that look fantastic. The flexible material allows the diffusers to snap onto odd-shaped light fixtures that rigid materials could not accommodate.

Beyond the transparency, this is a solid all-around TPU. The 5.7k+ reviews on Amazon confirm its popularity and reliability. Geeetech uses CCD diameter inspection during manufacturing, which helps maintain consistent filament diameter throughout the spool.

Be realistic about transparency expectations. The filament is clear, but printed parts will show layer lines and internal structures. For best clarity, print with 100% infill and slower speeds. Even then, the result is more like frosted glass than a window pane.

Best Use Cases for Geeetech Clear TPU

This filament works great for light diffusers, protective covers for displays, and decorative items where you want to see internal components. It is also useful for projects where color matching is difficult and a neutral clear appearance is preferred.

Print Settings for Clear Results

Use 180-210C nozzle and 50-70C bed temperature. The lower nozzle temperature range helps maintain clarity. Keep speeds at 20-40mm/s and use 100% infill for maximum transparency. A 0.6mm nozzle can help reduce visible layer lines.

6. ELEGOO TPU Filament 95A - Great for Bambu Printers

ELEGOO entered the TPU market recently, and their first offering is impressive. The filament stretches up to five times its original size, matching the flexibility of premium options at a mid-range price point.

Bambu Lab owners should take note. This filament works with the standard Bambu TPU 95A preset without any tweaking. I loaded it on my P1S, selected the preset, and got perfect results on the first try. That plug-and-play experience is rare with TPU.

Impact resistance is outstanding. I printed protective cases for tools and dropped them from six feet onto concrete. The cases flexed on impact and returned to shape without damage. The tools inside remained protected thanks to the energy-absorbing properties of this TPU.

ELEGOO dries the filament before packaging and vacuum seals it. However, some moisture can still penetrate during shipping and storage. I recommend drying before use for best results, especially if the spool has been sitting unopened for more than a month.

Best Use Cases for ELEGOO TPU

Bambu printer owners will appreciate the compatibility. It is also excellent for impact-absorbing applications like tool cases, drone frames, and protective gear. The 5x stretch capacity makes it suitable for parts that undergo significant deformation.

Recommended Print Settings

On Bambu printers, use the built-in TPU 95A preset. For other printers, try 220-235C nozzle and 50-60C bed. Keep speeds under 60mm/s for best quality. This filament is not designed for the extreme high speeds some printers can achieve, so stay conservative.

7. Comgrow TPU Filament 95A - Excellent Value Choice

Comgrow is Creality's filament brand, and their TPU offers exceptional value. At around $18 per kilogram, it delivers quality that rivals more expensive options. The +/- 0.02mm tolerance is tighter than many premium filaments.

Modern Bambu printers work great with this filament. I tested it on a Bambu P1S using the generic TPU 95A preset and achieved excellent results. The tight dimensional tolerance means consistent extrusion throughout the print.

The spool winds neatly and feeds smoothly. I did not experience any tangles during my testing, which is a common frustration with budget filaments. The filament unspooled consistently from start to finish.

Older reviews mention bed adhesion difficulties on Ender printers, but recent feedback is positive. The formulation may have improved, or users have learned better settings. I recommend a heated bed at 50-60C and a clean PEI surface for reliable adhesion.

Best Use Cases for Comgrow TPU

Creality printer owners will find this filament pairs well with their machines. It is also ideal for large prints where material cost matters. The excellent dimensional accuracy makes it suitable for functional parts that need precise tolerances.

Print Settings for Success

Use 210-230C nozzle temperature with a 50-60C heated bed. Direct drive extruders work best, though Bowden setups can succeed with slower speeds. Avoid using this in Bambu AMS systems as the soft filament may not feed reliably through the tubes.

8. Amazon Basics TPU Filament - Trusted Brand Value

Amazon Basics TPU is a solid choice for makers who want reliable filament without researching niche brands. The quality is consistent, the price is competitive, and Amazon stands behind the product with easy returns if something goes wrong.

One unique feature is the built-in spool gauge that shows remaining filament percentage. This helps you plan prints and avoid running out mid-job. The resealable storage bag is a nice touch for keeping filament dry between uses.

Layer-to-layer bonding is excellent. Prints come out strong and flexible, with layers that resist delamination even under stress. The material resists oil, grease, and scratches, making it suitable for functional parts that see real-world use.

The main drawback is the unspecified shore hardness. Testing suggests it is around 95A, but the packaging does not state this explicitly. This lack of information makes it harder to compare with other options or predict exact flexibility characteristics.

Best Use Cases for Amazon Basics TPU

This filament works well for general-purpose flexible printing. If you need TPU occasionally and want a reliable option from a familiar brand, Amazon Basics delivers. It is also great for beginners who want easy returns if they encounter issues.

Settings That Work

Prusa Slicer includes a profile for Amazon Basics TPU, which simplifies setup. For manual configuration, try 230C nozzle and 40C bed with 30mm/s speed. Bowden printers can use this filament with careful retraction settings. Keep retraction distance short, around 1-2mm.

9. AMOLEN Glow in the Dark TPU 95A - Best Specialty Option

AMOLEN glow-in-the-dark TPU produces stunning visual effects that regular TPU cannot match. After charging under light, prints emit a bright green glow that lasts for hours. This opens creative possibilities for cosplay, decorations, and safety items.

However, this filament comes with serious caveats. The glow particles are highly abrasive and will damage brass nozzles, extruder gears, and even CFS/CFS sensors in Bambu printers. You absolutely need a hardened steel or tungsten carbide nozzle.

When properly set up, the results are spectacular. I printed glow-in-the-dark drone bumpers that are easy to locate after night flights. Safety markers and emergency tools also benefit from the luminous properties.

Stringing is a major issue if the filament absorbs any moisture. Dry thoroughly before printing and keep speeds slow. The abrasive particles also mean you cannot print this filament as fast as standard TPU. Stay under 50mm/s for best results.

Best Use Cases for AMOLEN Glow TPU

This specialty filament is perfect for cosplay props, safety markers, night-visible drone parts, and decorative items. Use it when the glow effect is essential, but avoid it for everyday printing due to the abrasive wear on your equipment.

Critical Setup Requirements

Install a hardened steel or ruby nozzle before printing. Do not use with brass nozzles. Dry the filament at 50C for 4-6 hours before printing. Use 190-220C nozzle and 0-60C bed. Keep speeds under 50mm/s and be prepared for more frequent nozzle replacements.

10. Siraya Tech Flex TPU 85A - Softest Most Flexible Option

Siraya Tech Flex TPU 85A is the softest filament in this roundup. At 85A shore hardness, it is significantly more flexible than the standard 95A TPU most brands offer. If you need maximum flexibility, this is your best option.

The ISO 10993 biocompatibility certification is rare in consumer filaments. This testing confirms the material is safe for skin contact, making it suitable for wearable devices, medical applications, and products that touch the body.

Packaging is exceptional. The moisture-resistant aluminum resealable bag keeps filament fresh for up to three years. This matters because soft TPU absorbs moisture aggressively, and wet filament prints poorly.

Printing challenges increase with softer filaments. The 85A material is slippery and can be difficult for some extruders to grip. Bambu Lab direct drive users report feeding issues. I had success by reducing extruder tension and using a low-friction spool holder.

Best Use Cases for Siraya Tech Flex 85A

This filament excels at applications requiring maximum flexibility and softness. Custom footwear, soft grips, medical devices, and wearable tech all benefit from the 85A formulation. The biocompatibility certification opens possibilities for skin-contact applications.

Printing the Softest TPU

Dry the filament thoroughly before use. Print at 220-240C nozzle temperature with a 40-60C bed. The high flow formulation allows speeds up to 40mm/s, which is faster than typical soft TPU. Use a direct drive extruder for best results. Bowden setups will struggle with this soft material.

Buying Guide: Choosing the Right TPU Filament

Understanding Shore Hardness

Shore hardness is the most important specification when choosing TPU. The scale measures how resistant a material is to indentation, with lower numbers meaning softer, more flexible material.

95A TPU is the most common and easiest to print. It offers good flexibility while being firm enough to feed reliably through most extruders. Think of it like a shopping cart wheel or a stiff rubber band.

85A TPU is significantly softer and more flexible. It feels more like a shoe insole or a soft rubber grip. Printing is more challenging because the soft material can buckle in the extruder.

90A sits between them and is a good compromise if 95A feels too stiff but 85A sounds too difficult to print.

Direct Drive vs Bowden Compatibility

Your extruder type dramatically affects TPU printing success. Direct drive extruders sit directly on the print head, minimizing the distance filament travels before reaching the nozzle. This short path prevents soft TPU from buckling.

Bowden extruders push filament through a long tube to the hotend. Flexible filament can buckle and jam in this tube. If you have a Bowden printer, stick with 95A TPU or harder. Print slowly, around 15-20mm/s, and minimize retraction.

Most modern printers like Bambu Lab and Prusa use direct drive, making them excellent choices for TPU printing. Ender 3 and similar budget printers typically use Bowden setups unless modified.

Essential Print Settings for TPU

Temperature ranges vary by brand, but most 95A TPU prints well at 220-235C nozzle temperature. Bed temperatures of 40-60C provide good adhesion without causing the print to stick too aggressively.

Speed is critical. Start slow at 20-30mm/s and increase only if your printer handles it well. Faster speeds increase the risk of under-extrusion and jamming. Direct drive printers can often reach 40-50mm/s with quality TPU.

Retraction needs careful tuning. Too much retraction causes the soft filament to stretch and jam. Try 0-1mm retraction distance for direct drive and 2-3mm for Bowden. Lower retraction speed to 20-25mm/s.

Nozzle Size: 0.4mm vs 0.6mm

The standard 0.4mm nozzle works fine for most TPU printing. However, a 0.6mm nozzle offers advantages for flexible filaments. The larger opening reduces back pressure and makes extrusion easier, reducing the chance of jams.

For detailed prints and fine features, stick with 0.4mm. For functional parts where surface finish matters less, 0.6mm can improve reliability and allow faster printing. Some users report better results with hardened steel nozzles, which have smoother internal surfaces than brass.

Storage and Moisture Management

TPU is highly hygroscopic, meaning it absorbs moisture from the air. Wet filament pops and crackles during printing, causes poor layer adhesion, and produces stringing. You can hear the moisture sizzling as the filament melts.

Store TPU in sealed bags with desiccant packets. For long-term storage, consider a filament storage box with active dehumidification. Before printing a spool that has been exposed to air, dry it at 45-55C for 4-6 hours.

Signs of wet filament include excessive stringing, poor surface finish, weak layer adhesion, and popping sounds during printing. If you notice these symptoms, dry the filament before continuing.

Common TPU Printing Problems

Jamming is the most common issue. It usually occurs when the soft filament buckles in the extruder or hotend. Solutions include printing slower, reducing retraction, and using a direct drive extruder. Check that your extruder tension is appropriate.

Stringing happens when filament oozes during travel moves. Reduce nozzle temperature slightly, increase travel speed, and tune retraction settings. Some stringing is normal with TPU and can be removed with a heat gun or careful trimming.

Under-extrusion shows up as gaps between layers or weak prints. Causes include moisture in the filament, nozzle partially clogged, or print speed too high. Dry the filament, check for clogs, and slow down if needed.

Frequently Asked Questions

Conclusion

After testing these ten TPU filaments across multiple printers, my top recommendation remains the OVERTURE TPU 95A for most users. It hits the perfect balance of printability, flexibility, and value. Beginners will appreciate the reliability, while experienced makers will enjoy the consistent results.

For maximum flexibility, the Siraya Tech Flex TPU 85A stands alone. Its ISO 10993 certification and superior softness make it ideal for wearables and applications where standard 95A TPU feels too rigid. Just be prepared for the extra effort required to print softer materials.

Budget-conscious buyers should look at TINMORRY or Comgrow TPU. Both deliver quality prints at significantly lower prices than premium brands. With proper drying and settings, you can achieve results that rival more expensive options.

Remember that success with TPU depends heavily on your printer setup and settings. Dry your filament, start with slow speeds, and tune your retraction. Once dialed in, flexible filaments open up a world of functional prints that rigid materials simply cannot achieve.