1. Play the role of foot protection and beautification.
2. When the socks first appeared, they mainly played the role of foot protection, so that the feet can not be affected by the cold in winter.
3. As a spacer between feet and shoes, socks can absorb sweat and remove odors. Without this barrier, bacteria can easily grow on the feet, causing the skin to become red and itchy.
Especially in summer, people’s feet are prone to sweating. Wearing shoes without socks, especially shoes with poor ventilation such as plastic sandals, travel shoes, etc. will make the skin of the feet soak in sweat directly, and the fungus will be hot and humid. It is easy to grow in the environment, and fungal infection of the feet will occur, which induces athlete's foot.