Because wearing socks can effectively protect the soles of the feet. From the perspective of human structure, the distance between the feet and the heart is relatively far, so the blood supply ability of the feet is relatively poor, and the fat content above the soles of the feet is also very low. Therefore, the soles of the human feet are highly susceptible to cold, so socks should be worn for protection.
Socks are a type of clothing item worn on the feet. Shuowen: "Socks, foot clothing also." It plays a role in protecting feet and preventing foot odor. Socks are a general term that can be divided into cotton stockings, woolen stockings, silk stockings, and various types of chemical fiber stockings according to their raw materials. There are also various styles and varieties of stockings in terms of shape, such as long tube stockings, medium tube stockings, boat stockings, etc., as well as flat necks, cuffs, heels, and jacquard and woven patterns. 

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