Vest styles include pullover style, open-collar style (including front open, back open, side open or half open, etc.) according to the wearing method; waist-tight style, straight waist style, etc. according to the shape of the body; collar style includes collarless, stand-up collar, lapel, etc. Vest length is usually below the waist and above the hips, but there are a few tight vests that are shorter than the waist or longer than the hips among women's vests.
Vests are generally named according to the materials they are made of, such as leather vests, wool vests, etc. It can be made into a single or sandwiched vest, or it can be filled with wadding.
Bulletproof vest
For more information, please refer to the bulletproof vest entry.
Bulletproof vests are protective clothing used to reduce bullet damage like armor, and they are worn by police and the military. Most of these vests offer little or no protection against large caliber rifles or rifles, regardless of the type, style, material, or caliber of the rifle round. (This exception is not universal. The 22LR model, which is generally rated as good against large caliber rifle or rifle rounds, is generally rated as good against handgun rounds fired from handguns - again regardless of the type, style, material, or caliber of the handgun round.
Some types of body armor have metal backing (steel or titanium) and additional ceramic or polyethylene padding in strategic areas of the body for added protection. If the bullet hits the backing, these backings are effective against all handguns and some rifles. These vests are becoming standard in military use, as advances in ballistics technology have rendered "Kevlar-only" vests ineffective - The CRISAT NATO standard for vests includes titanium backing. Some vests are also designed to protect against knife attacks. Individual body armor. Used to protect against bullets or shrapnel. The bulletproof vest is mainly composed of two parts: the cover and the bulletproof layer. The cover is usually made of chemical fiber fabrics. The bulletproof layer is made of metal (special steel, aluminum alloy, titanium alloy), ceramic (corundum, boron carbide, silicon carbide), fiberglass, nylon, Kevlar and other materials to form a single or composite protective structure. The bulletproof layer can absorb the kinetic energy of the bullet or shrapnel, has a significant protective effect on low-speed bullets or shrapnel, and can reduce the damage to the chest and abdomen of the human body. Bulletproof vests include infantry bulletproof vests, flight personnel bulletproof vests and artillery bulletproof vests.