Thermal T-shirt is made with seamless circular cut technology. That is why the material perfectly follows the body contours, providing freedom of movement and muscle support. The structure of the material provides two layers of textile. The inner layer ensures natural ventilation and keeps the body dry by quickly evacuating moisture to the outside. Outer layer of combined textile (interlaced polyamide and elastane fibers) ensures reliable muscle support, reduced stress and close fitting of the fabric to the body. Protects, supports muscles and relieves some of the strain; Rapid drainage of moisture to the outside; Natural ventilation; Natural ventilation; Keeps the body warm; High elasticity. SPECS: Materials: 47% polypropylene / 49% polyester / 4% elastane; Hollow fiber: Thermolite; Seams: Flat Junction; Ergonomic zones: Hip Fitting Band; High ventilation zones: Armpit Ventilating Zone; Climate: winter; Purpose: mountaineering, hiking, snowboarding, skiing, mountain biking, etc.