1. Professional player version socks are usually made of lycra cotton, but the disadvantage is that they are too expensive; generally speaking, towel-bottomed socks have the best cost-effectiveness. There is no real pure cotton socks for socks. Generally, the cotton yarn content of socks is about 60% to 85%. Socks need a certain degree of elasticity, which requires the addition of a certain amount of elastic fiber (usually spandex) during the weaving process. For example, lycra (actually a type of spandex from DuPont) is the best material for skin contact. Generally, the whole pair of socks will not be made of lycra (many socks are marked as only for the sock opening). In order to strengthen and elasticize the sock toe, heel and cuff, artificial fibers are often used, and the two together account for about 15-40%. So what we call pure cotton (all-cotton) socks refers to the yarns other than elastic fibers and hanging threads being all cotton.
2. There is no necessary connection between the thickness of socks and blistering. Wearing two layers of socks is more likely to slip, and the feet are naturally more likely to blister.
3. It is best not to use a washing machine to wash socks, which will make the socks lose their elasticity, and do not soak for more than 20 minutes.
