ThermoLine thermal underwear is a base layer which is designed for increased comfort during any physical activity, sports, and as everyday wear. It is effective at zero and sub-zero temperatures, provides excellent thermoregulation and breathability. The fabric wicks away moisture and dries much faster than cotton, wool, nylon, acrylic, etc. It does not absorb odors. It has powerful antibacterial protection and sweat odor elimination thanks to the freshFX silver-based treatment.Material:85% polyester, 15% spandexImpregnation:antibacterial/SILVERIONHypoallergenicCare:- hand and machine wash, no more than 30 ° C- do not dry clean- do not dry in a washing machine and do not wring- do not bleach Features: fabric: two-component pile fiber that effectively removes moisture from the surface of the skin, protecting the body from hypothermia; provides a warming effect while keeping the body dry.