The ballistic and physical demands of the NIJ 0101.06 standards resulted in advanced technological developments, the Enforcer™ XP™ is the product of these improvements. In conjunction with the new NIJ .06 standard, U.S. Armor is committed to staying true to our mission of creating the thinnest, lightest and most comfortable vest; while maintaining the integrity of delivering the superior ballistic protection you have come to expect from our company over the last quarter-century.