From Flat Socks, the Eco Flamingos Cushioned Liners feature: 100% cotton and eco mesh materials Odor-control tech helps keep feet fresh Moisture-wicking pulls sweat away Supportive foam makes every step comfy Fits up to women's size 11 Machine wash cold with like colors, no bleach; tumble dry Directions: If possible, remove current insole in shoe and use as a trim guide for Flat Socks. If you can't remove shoe insole, use trim guides on the back of the Flat Socks and trim to the correct size. Imported.