Gore Bike Wear Men's Xenon II Jersey, White/Black, Small 100% Polyester Imported Tight fit Tight fit 100% Polyester; INSERT: 100% Polyester; MESH: 94% Nylon 6% Elastane 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.