A single shoe is a single layer of leather or cloth. There are many types of single shoes, such as casual shoes, sports shoes, fashion shoes, and now some boots belong to the category of single shoes. Single shoes belong to low cut shoes p> A single shoe is a single layer of leather or cloth, usually referring to relatively lightweight shoes, and in some regions, it refers to cloth shoes. In some places, single shoes are also called seasonal shoes p> In general, people like to classify shoes into three categories: cotton shoes, single shoes, and sandals. Sandals are mainly designed for summer wear, so most shoes are single shoes. They need to classify them in detail, but there are many, such as casual shoes, sports shoes, fashion shoes, and some boots that belong to the category of single shoes p> GB/T 20991-2007 Test Methods for Personal Protective Equipment Shoes National Standard (GB) GB/T 20991-2007
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