Two-layer construction (the inside layer regulates the skin micro-climate, draws moisture away, keeps the skin dry; the outside layer assures better protection by absorbing the moisture and regulating natural body temperature.
BTP covering system:
A special yarn with built in mineral component that converts natural body heat into infrared waves which then warm the body up.
Prolen® Siltex, Prolen® Bodyfresh:
A transformed microfiber of polypropylene with antibacterial properties.