Deluxe Liner No Show Low Cut Boat Shoes Cotton Socks Flats With Heel Grip For Men For shoe size : 6-10 Made of 85% cotton, 10% nylon, 5% spandex comfortable when wear Silicone grip patches at heel for better traction Use of high quality knitted fabric is not torn or deformed to even wash by washing machine. If you have any problem after received the goods. please contact seller first.We will resolve as fully&best