Armor SolutionUnited Shield International uses a proprietary ceramic based technology combined with Polyethylene to achieve the NIJ 0101.06 certified Level III stand alone performance.PerformanceNIJ Level III stand alone Multi Strike protection against-7.62 x 39mm 123gr PS ball (mild steel core) -7.62 x 51mm 149gr FMJ (M80)-5.56 x 45mm 55gr Ball (M193)Weight10 x 12 shooters cut - 3.3 lbsThickness: 1.04 Shapes and CurvatureShooters cut