Elastic fitness pants, sports leggings, nike pro, many names, in sports, it is worn as close-fitting sportswear or equipment in the innermost layer of clothes, and can also be worn in training or other fitness activities. Mainly to keep dry, remove moisture, proper ventilation, get a cool feeling, reduce friction and so on.

Mainly to protect a certain part, or to reduce the friction of clothes on the body.

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Sole socks made of nylon or spandex keep their original elasticity and shaping properties. But nylon is easy to break, and it is common to scratch and break on sharp objects. Cotton-wool blended bottomless socks have better warmth retention effect.