Carhartt Men's Big & Tall Base Force Extremes Super-Cold Weather Crew Neck Sweatshirt 60% Polyester, 33% Other Fibers, 7% Spandex Imported Machine Wash Fast dry with 37.5 technology Fights odors Smooth flat lock seams enhance comfort Drop tail adds coverage. Tag less neck label 60 percent polyester, 33 percent cocona, 7 percent spandex