Bambu Lab TPU 75A (2.85mm) Series
Ultra-soft, designed for wearable devices
Ultra-soft 75A hardness, paired with 2.85mm filament and the FlexFeed extruder, enables flexible 3D printing with a comfortable feel, efficient feeding, and reliable printing performance.
An ultra-soft cushioning layer, designed for items that come into contact with the body
TPU 75A offers excellent softness, cushioning, and elasticity, opening up more possibilities for 3D printing wearables and flexible functional parts.
From footwear and watchbands to cushioning structures, it is no longer just about making display models, but designing for actual wearable and usable needs.
Footwear and Insoles
Utilize flexible structure design to create footwear parts with cushioning effects.
Wearable Accessories
Suitable for evaluating watchbands, body-conforming flexible accessories and personalized designs.
Cushioning and Functional Parts
Suitable for parts requiring bending, compression, and flexible contact.
The value of 75A softness: Compared to harder TPU materials, 75A is better suited for applications requiring a soft feel, bending deformation, and cushioning capabilities.
2.85mm filament diameter, making ultra-soft TPU printing faster and more reliable
During the feeding process, ultra-soft TPU can easily deform and affect extrusion stability.
Bambu Lab uses 2.85mm filament diameter and pairs it with the FlexFeed extruder, optimizing the design for the feeding requirements of flexible materials.
According to product data, under specific internal laboratory test conditions, FlexFeed paired with TPU 75A can achieve a volumetric flow rate of approximately 10 mm³/s, which is about 3 times that of a traditional 1.75mm extrusion setup.
Through a more stable feeding method, it helps improve the printing efficiency of ultra-soft TPU.
Test Description: The flow rate and the approximate 3x performance comparison are both based on internal laboratory tests under specific conditions. Actual results may vary depending on printer configuration, models, material condition, and slicing settings.
A natural matte effect, looking soft and feeling even softer
After printing general TPU filament, the surface may exhibit a more noticeable gloss. TPU 75A, however, uses a modified formula to achieve a more natural matte texture.
Not only does it offer a soft feel, but it also gives wearable products a more refined appearance.
Natural matte texture: Compared to some TPU with a glossier surface, TPU 75A emphasizes a soft, refined appearance and feel, suitable for designs that prioritize contact comfort and aesthetic texture.
Long-lasting durability, designed for everyday bending and compression
TPU 75A does not only emphasize softness, but also provides a material choice for items requiring repeated bending, compression, and everyday contact.
From wearable devices, cushioning pads, to flexible functional parts, it can utilize the material's flexible properties and pair it with different structural designs to meet diverse application needs.
For 3D printing projects that need to balance comfort, flexibility, and everyday use requirements, TPU 75A provides a softer design option.





