TPUSiraya Tech

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Roamr TPU Air HR 85A is a structural foaming TPU within the Roamr series, specifically engineered for high-stress, high-wear, and critical support zones in footwear. Unlike materials that chase extreme hardness, HR 85A strikes the perfect balance between stable support, responsive rebound, and long-term durability. It ensures 3D printed shoes are not just "wearable prototypes" but durable footwear capable of long-distance walking and daily use.
Material TypeThe base polymer type determines printability, strength, flexibility, and heat resistance
TPU
Diameter1.75mm is standard, 2.85mm for some printers
1.75 mm
Spool WeightNet weight of filament on the spool. Standard spools are 1kg (1000g)
1000g