Men's thermal underwear Alpinus Tactical Base Layer Set black and gray GT43276 Alpinus Tactical men's thermal underwear from the Outdoor line offers support during intense, continuous effort in difficult conditions. Black and gray set consisting of a long-sleeved sweatshirt and matching trousers. The Thermo system guarantees solid protection against the cold. The Double Layer construction is responsible for wicking moisture away. In places of increased sweating, Vent Areas and Aero Zones have been designed to work together. Quick Dry material has low absorbency parameters. Perfectly fitted Perfect Fit cut made of anti-allergic Anti Allergy fibers. Flat, flexible Seamless seams for even greater comfort. Flexible Flexi Zones in places most exposed to stretching and deformation. Technical data: Material: 56% polyamide, 39% polypropylene, 5% elastane Double Layer – a modern two-layer construction that provides a pleasant feeling of thermal comfort without excessive moisture Vent Areas – ventilation zones in places with increased sweating Quick Dry – specialized, quick-drying materials with low absorption parameters Perfect Fit – flexible material construction, perfectly fitting to the body Thermo – technology that provides protection against cold, thermoregulation between the skin and the environment and the transport of moisture away from the skin Anti Allergy – anti-allergic fibers that do not cause skin irritation Seamless – the use of flat and elastic seams in sensitive areas, exposed to abrasion or pressure Aero Zone – a special weave of fibers with a sieve structure that quickly wicks away moisture Flexi Zone – flexible zones in places most exposed to stretching and deformation