Bulletproof Vest, also known as bulletproof vest, bulletproof vest, bulletproof vest, bulletproof vest, body armor, single-man body armor, etc., used to protect the damage to human body warheads or shrapnel. Bulletproof clothing is mainly made up of a jacket and a bulletproof layer. Clothes often used chemical fiber fabric production. Bulletproof layers are made of metal (specialty steel, aluminum alloy, titanium alloy), ceramic sheet (corundum, boron carbide, silicon carbide, alumina), glass steel, nylon (PA), KEVLAR), ultra-high molecular weight polyethylene fiber fiber (DOYENTRONFIBER), liquid protective materials, etc. Forming a single or composite protective structure. Bulletproof layer can absorb the kinetic energy of the warhead or shrapnel, the low-speed warhead or shrapnel has obvious protective effect, in the control of a certain depression can reduce the damage to the human chest, abdomen. Bulletproof clothing includes infantry body armor, flight personnel body armor and artillery body armor. According to the appearance can also be divided into bulletproof vests, full protective body armor, women's body armor and other types.