features:Ballistic material: Aramid fiber Ballistic criteria: Chinese level II / US NIJ level IIIA, resisting 7.62 x 51mm pistol bullet (lead core) by Chinese 54 type pistol, as well as 9mm FMJ (V 427m/s) by 9mm Uzi SMG and 0.44 Magnum (V 440m/s) Ballistic area: 0.045m2 Total weight: 0.4kg Thickness: 6mm Feature: impact-resistant, waterproof, heat insulation, non ricochet, anti-ultraviolet, comfortable wearability, light-weight, low specific gravity (able to float on water), able to work separately from helmet, etc Application: special military or police forces, prisoner escort, security personnel, bodyguard Special note: resisting only one shot of bullet