Bullet proof vests below Grade IIIA are soft and do not require ceramic plates. The bulletproof layer material of soft bulletproof vests can be divided into domestic and imported materials. The domestically produced material is white ultra-high strength polyethylene fiber; The imported material is KEVLAR yellow; The price of bulletproof vests is related to the materials used and also to the protective area. The larger the area, the higher the price.
There are three common types of bulletproof vests: vest type (0.27 square meters), vest type (0.32), and full protection type (with a protective crotch of 0.60).