Isotoner Men's UltraDry Ski Stretch Poly Twill/Nylon (Wicking Fleece) Twill: 90% Polyester, 10% Spandex; Microfiber: 100% Polyester, Inner; Lining: 100% Polyester Imported Hand Wash 100 percent waterproof for wet conditions Specially treated fleece lining draws perspiration away from skin