Material: 60% Polyester, 22% cotton, 13% Nylon, 6% spandex, super soft with poly&cotton blend fit with comfort and durability spandex. Style:two styles, one black with different patterns and one navy with different patterns,great for a professional wardrobe, non-binding dress socks will keep you comfortable and your socks in place for a perfect fit. Size: fit for sock size: 10-13/shoe size: 6-12 suitable for: schools, companies, factories, airports, offices, tourism, sports, shopping, walking, bicycles and so on use guide: clean with color machine, roll dry medium. Use only non-chlorine bleach when needed. Promise: at incredible prices, really good quality.