feature: 1.Professional waterproof socks waterproof windproof breathable perspiration warmth comfort 2. Comfortable with good flexibility help to improve comfort and improve fit. 3. Three-layer material the inner layer is designed with a waterproof and breathable membrane and a special process to achieve a real waterproof effect 4. Seamless craftsmanship comfortable to wear no foot rubbing 5. Easily deal with outdoor sports. In the harsh outdoor environment wearing waterproof windproof and warm socks has become a trend. Not afraid of cold wind rain and snow giving you lasting protection in harsh environments Specification: Material: Outer layer: 98% high wear-resistant nylon 2% elastic rubber band Interlayer: Lightweight waterproof membrane waterproof and breathable Inner layer: 80% spun yarn 20% nylon The size corresponds to the actual size: Waterproof socks are slightly different from ordinary socks please choose according to the actual situation S code: bottom length 20-21cm corresponding to foot size 36-39 M size: bottom length 22-23cm corresponding to foot size 40-42 L size: bottom length 24-25cm corresponding to foot size 43-46 XL size: bottom length 2-27cm corresponding to foot size 47-50 Color: black/gray/navy blue List: A pair of waterproof socks*1