Socks

The utility model provides a pair of socks, essentially comprising a sock body and an outer coating. Wherein, the outer coating with elastic deformation capability is arranged at the bottom of the sock body so as to cover the toe, sole and heel and so on of the sock body; a bag shape is formed between the bottom of the sock body and the outer coating, whose opening edge is provided with a first strength elastic bundle and the place near the heel is provided with a second strength elastic bundle. The bag can contain various mats with special functions as necessary to promote the comfort and health curative effect when wearing. By use of the double-layer sock sleeve at the bottom, a sock sleeve layer with special thickness and super strong elasticity is formed at the foot bottom, and by use of the first and second strength elastic bundles positioned near the heel, the ankle is fixed and protected, preventing the sports injury.