The Harris Flak System 1050D Nylon delivers outstanding Level IV+Security. Crafted from durable 1050D Cordura, this jacket is designed to absorb even the most ballistic threats. The integrated Level IV+Protection System provides unparalleled Harris Flak jacket 1050D Cordura NIJ L4+ STANAG 4496 & 2920 Ballistic Nylon copyright,Chest,Back, protection