Guard Dog Body Armor’s Level IIIa 10”x12” plates are made from a combination of Alumina and PE, meeting the NIJ standard 0101.06 Level IIIa standards. These level 3a plates are single curl with a waterproof polyester cover. These ultralight plates are some of the lightest on the market that still offers 3a protection, and weighs less than 15oz each! These plates are a must-have if you are looking for lightweight protection. These ceramic plates are also a great option for children or smaller-framed individuals who cannot carry a lot of weight.