Coldpruf Basic Pants Black X-Large. Made from 60 percent cotton/40 percent polyester blend. Pants feature rib cuffs for added protection from cold and front/back rise for increased comfort. Specifications for Coldpruf Basic Pants: Manufacturer: Coldpruf Color: Black Gender: Male Application: Baselayer Bottom Apparel Fit: Standard Package Contents: Coldpruf Basic Pants Designed with two-layer engineering to trap warm air. Made from 60 percent cotton/40 percent polyester blend. Pants feature rib cuffs for added protection from cold and front/back rise for increased comfort.