Do spikes have to be tied?

The sole has alloy nails, which have good anti-slip performance and are suitable for runners in various venues. Nail shoes can be divided into: long nail shoes and short nail shoes; Long spike shoes are the first choice in autumn and winter because of their high waterproof ability and strong warm-keeping function. Wearing spikes to participate in sprint competition can not only improve speed and performance, but also have an indelible impact on track and field, and make full use of physical knowledge to improve sports level.

Nail shoes are ancient rain boots with round nails at the bottom. Used for anti-skid on rainy and snowy days. "Old Tang Book": "Dezong entered Qugu, which was rainy and slippery. Dongchuan Festival promoted Shu, son of Li Shuming, and Ling, son of Li Shuming. Make an alliance with the other side, and start hammering, even get on the horse, even to Liangzhou. " Song Shi Ye's poem "Send Relief to Lu Ziyang and Others": "The torch illuminates the night, and Ding Hong exposes his teeth." "A record of the Ming dynasty. "Hongwu Six Years": "First, when hundreds of officials enter the DPRK in the rain, they all use nail boots. Between progress and the trend, it reaches the temple. "