Spenco Thinsole Full Insole W 11/12 M 10/11 FULL LENGTH SIZE: W 11-12 M 10-11 * Designed to support the footÊs arch and absorb the shock of everyday activity * Unique shell provides excellent stability without the added bulk of most orthotics * Shell is bonded to a layer of closed-cell nitrogen-injected material and covered with 4-way stretch nylon Shipping Carton Size: 14 L x 12 W x 4 H