Gore Bike Wear Women&#39;s Sportive II WS Lady Tights, Black, Medium SHELL:100% Polyester/ WINDSTOPPERMEMBRANE/ 100% Polyester/ INSERT:87% Nylon/ 13% Elastane/ Imported WINDSTOPPER Soft Shell WINDSTOPPER Soft Shell SHELL: 100% Polyester; BACKING: 100% Polyester with a WINDSTOPPER Membrane; STRETCH: 87% Nylon, 13% Spandex 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.