The inner lining is breathable and sweat - absorbing. The material fits the feet comfortably, wicks away sweat and dissipates heat. The soft fabric prevents redness and peeling of the heels caused by friction during walking, providing careful care from the outside to the inside. This product is in short supply, may be out of stock at any time, don't buy if you mind, all the goods sold in this store are genuine goods, welcome buyers to buy, we are willing to exchange high-quality service for your five-star praise