From Flat Socks, the Mini Floral Print Cushioned Liners feature: Polyester mesh material Odor-control tech helps keep feet fresh Moisture-wicking pulls sweat away Supportive foam makes every step comfy polyurethane foam base cushion 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 to trim to the right size Imported.