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Description
BIQU MorPhlex Variable Hardness TPU Filament 1.75mm (90A to 75A)If you have ever tried to 3D print a comfortable shoe or insole, you know the struggle: soft TPU (like 75A) feels great but is nearly impossible to print without constant jams, while stiffer TPU (like 95A) prints beautifully but feels like walking on a hard plastic brick. Enter the BIQU MorPhlexthe worlds first variable hardness flexible filament. This revolutionary material is specially engineered to print stably as a firm 90A TPU, allowing your
If you have ever tried to 3D print a comfortable shoe or insole, you know the struggle: soft TPU (like 75A) feels great but is nearly impossible to print without constant jams, while stiffer TPU (like 95A) prints beautifully but feels like walking on a hard plastic brick.
Enter the BIQU MorPhlex—the world’s first variable hardness flexible filament.
This revolutionary material is specially engineered to print stably as a firm 90A TPU, allowing your extruder gears to grip it easily for clean, tangle-free extrusion. But here is the magic: once the print cools and cures, it transforms into an ultra-soft, skin-friendly 75A. You get the hassle-free printing experience of a rigid filament, with the cloud-like, rebound comfort of premium footwear foam.
Features
- Variable Hardness Technology: Prints firm at 90A for flawless extrusion and bridging, but softens down to 75A post-print for maximum flexibility and comfort.
- The Ultimate Wearables Material: Specifically engineered for printing shoes, slippers, custom orthotic insoles, and soft ergonomic grips.
- Beginner-Friendly Extrusion: Because it feeds into your hotend at 90A, it is vastly more stable than standard ultra-soft filaments, drastically reducing extruder jams and stringing.
- Vibrant & Eco-Friendly: Available in a wide range of eye-catching colors. It is biodegradable, skin-safe, and perfect for prolonged physical contact.
- High Precision: Manufactured with a strict dimensional accuracy of ±0.02mm to ensure consistent flow rates.
Real-World Maker Tips (Printing & Setup)
- NO AMS / MMU: Like all flexible materials, do not run this through the Bambu Lab AMS or any other automated multi-material system. It will stretch, jam, and cause a massive headache. You must feed this directly from an external spool holder (preferably one with smooth bearings) straight into the toolhead.
- Dry It Thoroughly: TPU is incredibly hygroscopic (it absorbs moisture from the air rapidly). Even though it comes vacuum-sealed, we highly recommend throwing it in a filament dryer before your first print to prevent stringing and popping noises.
- Model Selection: If you are printing shoes, look for "segmented" STLs designed specifically for FDM printing. Segmented structures maximize the bending capabilities of the MorPhlex material!
Specifications
| Feature | Specification |
| Material | Variable Hardness TPU |
| Diameter | 1.75 mm (±0.02 mm) |
| Print Hardness (Feeding) | 90A (Firm) |
| Final Hardness (Cured) | 75A (Ultra-Soft) |
| Nozzle Temperature | 225°C – 260°C |
| Recommended Flow Rate | 2.8 – 4 mm³/s |
| Net Weight | 1 kg |
What's in the Box
- 1 × Spool of BIQU MorPhlex Variable Hardness TPU (1kg)
- Desiccant Pack & Storage Box
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 4
Toy provides much fun and hilarity, seam rips.
Size: 20 x 4 x 4 in, Pattern Name: Eggplant, Size: 20 x 4 x 4 in, Pattern Name: Eggplant
So, I kind of bought this on a whim. But our dogs absolutely love this toy, and it provides many moments of hilarity as watching our medium sized dogs tote this giant toy around, whipping it back and forth, hitting themselves with it, is constant entertainment. The squeaker is still working nearly 6 months later, which is amazing. I only took off one star because I have had to perform surgery on this toy multiple times due to the seam coming open, letting the stuffing out, which is a major issue. I have to take it away from them (which they hate) then find time to sew it up until the next spot opens up. If I was smart, I'd just have reinforced the entire seam the first time, but no one said I was smart.
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Reviewed in the United States on October 27, 2025
★★★★★ 5
He loves them
Size: 20 x 4 x 4 in, Pattern Name: Eggplant, Size: 20 x 4 x 4 in, Pattern Name: Eggplant
Our Dog absolutely loves this little toy. Have a stock pile because, like all dog toys, they need replacing.
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Reviewed in the United States on May 23, 2026
★★★★★ 5
Great dog toy
Size: One Size, Pattern Name: Corn
My dog loves this toy. It is sturdy and great squeaker.
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Reviewed in the United States on November 15, 2025
★★★★★ 3
Cute but red fur does chew off 😜
Size: 20 x 4 x 4 in, Pattern Name: Pepper
My dog loves this hot pepper. It's our 2nd but the red fur does come off so don't leave your pet unattended with it for an extended amount of time.
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Reviewed in the United States on February 10, 2026
★★★★★ 5
This worm, pretty sure it’s a worm and not a snake, can take a lot of abuse.
Size: X-Large (Pack of 1), Color: Blue Snake, Size: X-Large (Pack of 1), Color: Blue Snake
Snake, worm, whatever, my dog doesn’t care, she loves it all the same. My little friend can be kinda rough with her toys. This is no exception. The pictures are from roughly one month of giving it to her and include playing with it at least every other day or so. The top is holding up well, but the bottom has taken some damage, and two of the squeakers have long since been destroyed. Despite this, my dog still loves playing with it. We normally play tug of war together, but on her own she chews at it to get to the squeakers inside, which she promptly destroys, which I’m totally fine with, as quiet toys are much preferred, by me, not her. I believe there are 4 in the XL size that we got. We’ve had a few of these in the past. We tend to get about 6 months out of them. After she “lovingly” removes the squeakers, she doesn’t chew on it much, and we just use it for tug of war, but at that point she’s done enough damage to the underside that its time is limited. But, as it’s pretty low priced, for the time and enjoyment we do get out of it, it’s very much worth it. I do need to clarify, the durability is actually quite good, I don’t fault the product as at all, it’s just my dog is equally as good with destruction, but it should be noted this toy does last much longer than most of her victims. The color, (we got the blue and green) is also very vivid and nice, as is the texture. We’ll be purchasing again.
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Reviewed in the United States on September 23, 2024