Cotton socks Usually we like to wear slouch socks made of pure cotton, but is pure cotton 100% cotton? The answer from hosiery experts is no, that is, there are no 100% cotton slouch socks. If the composition of a pair of slouch socks is 100% cotton, then this pair of slouch socks will not be elastic at all, and the sock opening must be knitted very wide to fit in. One can imagine how the pair of slouch socks do not follow the foot. 100% cotton slouch socks have a particularly high shrinkage rate, are not strong, and are not durable. 100% cotton slouch socks are not called cotton socks, but cotton.

Generally, slouch socks with a cotton content of more than 75% can be called "cotton socks", and generally slouch socks with a cotton content of 85% are very high-end cotton socks. Others also need to add some functional fibers to maintain the elasticity, fastness and comfort of slouch socks. Polyester, spandex, and nylon are very common functional fibers.