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*1view less