Hi-tech polyester fabric to provide premium performance for absorbency, wicking, durability and abrasion resistance. very soft. wrinkle free. lightweight. stay warm and dry. One size fits most. can be worn on its own or under any kind of helmet. fabric is hypo-allergenic and non-irritating to the skin. 4-way stretch. flatlock seams. machine washable. very quick dry. Multi-purpose:Super comfortable wear them while: skiing, motorcycling, running, biking, trekking, mountain climbing, snowboarding, airsoft paintball, hunting, tactical training, cycling and other outdoor activities. Gender: Unisex Color: As Picture