Siraya Tech is entering the market for 3D-printed shoes and expanding its filament portfolio with a new product line called “Roamr.” The manufacturer is best known for specialty resins, but also offers filaments for engineering, model making, and casting applications. With Roamr, the focus is now on a material that is specifically designed for wearable products, especially shoes.
Roamr consists of a foaming filament. During extrusion, this type of material forms bubbles that are enclosed by the solidifying plastic. The result is a foam-like structure that is suitable for cushioning components. This is relevant for shoe soles because the material needs to absorb shocks and be elastic at the same time.
Siraya Tech also justifies Roamr with the limitations of its own existing products. The company already had foaming filaments such as TPU Air and PEBA Air in its range. TPU Air does not provide enough rebound energy for shoe applications when compressed, while PEBA Air is described as too stiff. Roamr therefore relies on a foamed TPU that is designed to close this gap and has been optimized for use in shoe printing.
According to the manufacturer, Roamr achieves up to 50 percent more rebound energy than TPU Air in shoe applications. At the same time, the material is said to be softer and therefore more comfortable to wear than PEBA Air. Two degrees of hardness are available at launch, Shore 80A and 85A. Siraya Tech also lists black and beige as available colors.
The announcement comes at a time when the market for 3D-printed shoes is visibly growing. In addition to service providers offering printed shoes, more material options for DIY construction are also emerging. Roamr complements this selection with a filament that combines the cushioning properties of foam structures with a TPU approach focused on comfort.
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