NBERA 2econdskin Barefoot Water Skin Shoes Aqua Socks Beach Swim Surf Yoga Exercise 2018 2018 New upgraded aqua multi shoes with strengthened material Comes with useful transparent zipper bag Dry off quickly / excellent flexible & comfortable like a socks Material: 85% polyester+15% polyurethane , outsole: 100% neoprene Fits tight. Order one step bigger size than your original size if you want easy fit. Please check size chart in product description