I. Product introduction
The NIJ Level IV ballistic and stab-proof vest 1000D has perfect armor. Made of high-quality Oxford cloth waterproof fabric and lined with pure cotton breathable fabric. Shoulder and waist size can be adjusted with Velcro，so this vest can be suitable for weights between 100 and 350 LBS and heights of 5’~6’8”.Soft padding at shoulders and waist provides comfort and flexibility. The rear waistband is double-layer reinforced and stab-proof or ballistic-proof cores can be placed on the front and rear. The entire bulletproof vest weighs 6 pounds (3KG) and has a protective area of 0.25 square meters. Available in Army Green and Dark Blue. This NIJ LEVEL III body armor has been tried and tested and has been well received by soldiers and police. It is widely used in the army, police stations, fire brigade, etc.

II. Product description
Stab-proof inner core: The stab-proof layer of the stab-proof vest is composed of 16 layers of high-performance polyethylene, which is a black, dense, waterproof and light-resistant protective layer.
Bulletproof and stab-proof clothing: consists of a jacket, a bulletproof layer and a bulletproof layer protective cover. The jacket is removable, washable, and adjustable at the shoulders and waist.
Protective layer structure: composed of 45 layers of polyethylene fiber woven cloth (four orthogonal layers) + 1 layer of 4.5mm thick foam.
Test standards: Puncture resistance is tested at room temperature using standard test tools and weights, with a drop weight of 2.4kg. The impact energy is 24J plus or minus 0.5J, which can effectively sprint into stab-resistant clothing at 0 degrees, 45 degrees, and no puncture angle.

III. Product performance
Shell sealing performance: The protective layer is sealed with an anti-seepage and anti-seepage black protective shell, with even sealing edges. The protective cover material is impermeable and has a hydrostatic pressure resistance of not less than 18kPa.

Flexible to wear: Flexible to wear, easy to put on and take off. After wearing it, the free movement of the arms and the human body's movements such as kneeling, jumping, running, pitching, and turning should not be significantly restricted.

Waterproof and moisture-proof: Made of new high-quality Oxford cloth waterproof fabric, the interior is made of pure cotton breathable fabric, which is waterproof and moisture-proof.

Room temperature bulletproof performance: tested using 1979 7.62mm light submachine gun and 1951 7.62mm pistol bullets (lead core). In the case of a valid hit, if the bullet is blocked, the maximum groove depth should be less than or equal to 25mm.

Soak bulletproof: Soak the bulletproof and stab-proof clothing in room temperature water for 30 minutes, and then test the bulletproof performance. To withstand effective bullet impact, the maximum indentation depth of the backing should be less than or equal to 25 mm.

High temperature ballistic performance: After high temperature test (+55℃±2℃, constant temperature for 4 hours), test the ballistic performance within 15 minutes. In the case of an effective hit, the warhead is blocked and the maximum sinking depth of the backing is less than or equal to 25 minutes.

Low-temperature ballistic performance: After the low-temperature test (-20℃±2℃, constant temperature for 4 hours), conduct the ballistic performance test within 15 minutes. In the case of an effective hit, the bullet is blocked and the maximum sinking depth of the backing is ≤25min.

Bulletproof and damp-heat performance: After passing the damp-heat test (70℃±2℃, 80% relative humidity, 240h), conduct the bulletproof performance test. In the case of an effective strike, the bullet is blocked and the maximum sinking and rebound depth is ≤25min.

NIJ Ballistic Test Report
All Tophelmetfan body armor and vests must pass the NIJ ballistic test before they are sold on the market. They are essential tactical equipment for soldiers and police.

IV. HOW TO CHOOSE THE CORRECT SIZE OF YOUR BODY ARMOR