Gore Men's Fusion So Pants WINDSTOPPER Soft Shell WINDSTOPPER Soft Shell SHELL: 100% Polyester with a WINDSTOPPER Membrane; LINING: 100% Polyester Machine wash warm. Permanent press cycle. Do not bleach. Do not tumble dry. Dry or steam iron low. Wash with similar colors. Wash inside out. Drycleaning not recommended.