Early body armor was made of metal such as steel. Steel is a widely used hard bulletproof material, which can provide excellent ballistic protection. But it was not suitable for military use once new bulletproof materials were introduced because steel body armor is heavy and can make it difficult to move.
We typically use PE to produce body armor, whose strength is five times as steel, and features lightweight performance. PE body armor is light and will not weigh you down, even during extended missions.
First of all, you need to assess your potential dangers. Different levels of danger require different levels of body armor. If your bulletproof level is far beyond your danger level, the high-level protection may also influence your flexibility and movement. Among the same-material bulletproof vests, high bulletproof level ones are typically heavier. But if the bulletproof level is lower than your danger level, the body armor cannot ensure your safety. According to your environment of task execution and NIJ ballistic tests, you can determine the suitable NIJ level body armor. The following are different levels of NIJ standards.
By ballistic test NIJ divides the body armor into five levels:
Level I: .22 LR;
Level IIA: 9mm to .40 S&W;
Level II: 9mm to .357 Magnum;
Level IIIA: .357 SIG to .44 Magnum;
Level III: 7.62mm rifle rounds;
Level IV: Armor-piercing .30-06.
All body armors have a recommended working lifetime and the strength of inside bulletproof materials will also reduce over time. Even the most powerful material will degenerate as time goes on. The most important thing to realize is how long you plan on needing to use your body armor.
Expired bulletproof vests can still be used but we recommend avoiding extended use over time. The strength of ballistic materials inside the expired body armor gradually fades. Even though it is still bulletproof, it may not reach the NIJ level of the factory acceptance test. Nothing is more precious than your life and if your body armor is expired, please purchase a new one to replace it.
We provide body armor with NIJ level IIIA, which can resist almost all bullets. When your mission danger level exceeds the protection level of body armor, a ballistic plate or a ballistic shield with higher ballistic protection level is needed.
When you stand up putting on body armor, the lowest point of the bulletproof part should be level with your navel. If it is too low, the bulletproof vest may hinder free movement. But if the lowest point of the bulletproof part is too high, your vital organs may not be properly protected.
After buying a new suit of body armor, some persons may be confused about how to store their new body armor. The proper storage method can help to extend the using life of body armor. Two factors should be noticed in the storage location: water and ultraviolet rays (sunlight) which make the body armor wear out faster. As long as it is kept in a dry place out of direct sunlight, the body armor should be fine.