Men's Alpinus Active Base Layer Thermoactive Sweatshirt, Black and Gray GT43189 Properties: The Alpinus Active men's thermal T-shirt from the Outdoor line is reliable during activities in difficult weather conditions. The Thermo system guarantees solid protection against the cold. The Double Layer construction is responsible for wicking moisture away. Vent Areas have been designed in places of increased sweating. 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. Technical data: Material: 58% polyamide, 39% polypropylene, 3% 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 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