In the outdoor sports, some people think that you have only to wear thick socks, at least wear two pairs of cotton socks,can have more adequate protection of the feet.To some extent, it is reasonable, because two pairs of socks can be attached better with foot and decreases the friction between feet and socks and converted to friction between the socks and shoes.However, as a result, they neglect another problem:after a long walk , foot will swell 7% – 8%, so two pairs of socks will hoop on the whole foot tightly, including the ankle part.It will lead to the poor blood circulations and cause some foot diseases.In the winter, extremely in some cold areas, it will cause unnecessary frostbite.So, socks, which are specially designed for foot, is important in sports, especially in the outdoor sports.
But,what is the socks specially designed for foot?Now we start talking about the structures of the socks.
First of all, it must have mat, which is like a towel ring at the bottom of the socks , so it is also called terry.The main function of terry is to increase the elasticity between the foot and shoes.Besides,terry can also increase the surface area of the socks material and air to get better moisture absorbing and sweat releasing property.
Secondly,it must have a circle of elastic fixation in the arch parts of the socks. Elastic fixed cannot be too tight,or it will affect the circulation of the blood too, but also cannot too loose cause it would run on foot.
And, finally,socks in the foot and heel need to be thickened.The stress of the heel is the biggest of all and the toe is weak relatively,so the extra security is necessary.
Reference: Outdoor Information Network (Chinese Version)
