TS1 (Thermal Suede One) is a lightweight polyester fabric with a soft, suede-like surface. It is created by combining fibers of two different thicknesses: microfiber (under 1 decitex) on the outer layer and macrofiber (around 3 decitex) on the inner layer.
The slightly raised macrofibers give TS1 its distinct suede feel. The fabric functions based on a basic physical principle: moisture moves from areas with smaller surface area (microfibers) toward those with larger surface area (macrofibers). This natural capillary action results in quick and efficient moisture wicking.
Thanks to this structure, TS1 is excellent at transporting sweat and condensation away, keeping the user or equipment interior dry and comfortable. It's widely used in the linings of sleeping bags, backpacks, and other outdoor gear that demand both comfort and moisture management.