The plates are made from ceramics with a polyethylene backplate (itself rated at Level IIIA). The ceramics has a mosaic pattern giving them improved multi-hit capabilities. We tested them with 2 rounds of 30.06 and 2 rounds of 5.56 M193, none penetrated the plates.
Material: AlO2 Ceramics + Polyethylene (UHMWPE). This model complies with NIJ Standard-0101.06 for Ballistic Resistance of Body Armor.