As the basic equipment for safety early warning and protection, reflective vests have been widely used in various industries, such as our common safety reflective vests, traffic command reflective vests, sanitation reflective vests and so on. Reflective vest is mainly composed of fluorescent fabric, reflective cloth or reflective lattice. Reflective vests generally use pink mesh or low elastic silk fabric. The quality of fabric is also one of the factors that affect the price. Good fabrics are fluorescent and breathable materials, so they won't feel sultry after wearing them, while the fabrics of inferior reflective vests are not only uncomfortable but also particularly weak. We compare the common reflective vests such as traffic police. This vest has strong functionality and many pockets, which can meet the needs of traffic police on duty. The vest is equipped with silver-gray reflective cloth or reflective plaid, which is not only beautiful, but also has high reflective brightness coefficient, which can protect the safety of users. The types of reflective vests can be seen in detail: the reflective fabrics used on www.zjcnss.cn/news/detail/74.html and reflective vests can be generally divided into plain reflective fabrics, bright silver reflective fabrics and bright reflective fabrics according to their brightness. According to its material, it can be divided into chemical fiber reflective cloth and T/C reflective cloth.