Material: UHMWPE fiber characateristic: light weight Color: green, black, dark blue etc. Protection Level: NIJ IIIA We are the facory for UHMWPE fiber and the series products of UHMWPE fiber.UHMWPE Bullet Proof Helmet in NIJ level IIIA American Helmet, German Helmet Size: S/M/L Colors: green, black, dark blue, etc.The UHMWPE Bullet Proof Helmet (also call ballistic helmet, safety helmet, bullet ...