These Tilos Quality Socks are perfect for scuba diving, snorkeling, and other water sports! 3mm Nylon II Honeycomb silkscreen sole Glued and blind-stitched Prevent chafing and add insulation when diving with full foot fins Comfortable fit Sizes: XS Men&';s 5, Women&';s 6 SM Men&';s 6-7, Women&';s 7-8 MD Men&';s 8-9, Women&';s 9-10 LG Men&';s 10-11, Women&';s 11-12 XL Men&';s 12-13, Women&';s 13-14 2XL Men&';s 14-15, Women&';s 15-16 3XL Men&';s 16-17, Women&';s 17-18