For year-round versatility, Carhartt Men's Midweight Cotton Rib Base Layer Pants are designed to be worn under work clothes. Made of 97% cotton/3% elastane fabric that fights odor, these men's base layer bottoms feel soft against the skin and are breathable. For added comfort, flatlock seams reduce chafing and there's a contoured front with fly. For a base layer set, pair with UM0269-M-Carhartt Men's Midweight Cotton Rib Base Layer Crewneck. Model UM0270-M.