Multi-layer Chemotherapy Ice Socks design protects skin from gel packs outer layer traps in cold, thin inner layer keep feet comfortable during cooling. Socks will remain cold for up to 30 minutes Depending on the length of your treatment several pairs may be needed. Gel packs wrap your feet for complete cooling without missing a single spot. Uniquely designed with top and bottom ice packs to give you coverage you can count on Each Set Includes 2 socks with 6 ice packs Socks fit Women's shoe size 6-12***Expedited Shipping Available