The Carhartt Women's Base Force Heavyweight Poly-Wool Crew features temperature-regulating poly-wool blend material to keep you warm, dry, and odor free on the coldest days. With a just right blend of 190 gsm/6.5 oz 80% Poly and 20% Wool, this temperature regulating mixture will keep you warm and dry. Smooth flat-lock seams and tag less label enhance comfort. Rugged Flex fabric moves with you. FastDry technology wicks away sweat. The concealed thumb loops keep your sleeves in place when you put on another layer. This heavyweight shirt is just at home as a layering piece on those really cold days on the jobsite as it is as lounge wear at a snowy weekend getaway at the cabin.