The Spartan Armor Spall Containment Sleeve provides an extra layer of protection from fragmentation (spalling) and a high degree of confidence when wearing Spartan Armor's Base Coat or Full Coat Spartan Omega AR500 and AR550 Steel Core Body Armor plates. These spall containment sleeves will reduce or potentially eliminate spalling as projectiles ricochet off the AR Plate, effectively containing such fragments within layers of Aramid Fibers and the rugged 1000D Cordura Ballistic Nylon Casing.FeaturesBallistic Nylon Casing 1000D CorduraMultiple Layers of Laminated Ballistic Aramid Fibers (Front Facing)For Front and Back ProtectionFits 10" X 12" Shooters Cut Plate SizesFlexible and Durable 7.4 oz. each