MIL-STD 662 ballistics fragmentation test for tactical eyewear. The RCI Optics lens technology uses our proprietary Helius™ advanced polymer is up to six times denser than polycarbonate or other lens materials. Our Leviathan Series™ sunglasses, made with our Ballista 2.0 frame material combined with our Helius H780 or L25 lenses, pass the ANSI Z87.1 and MIL-STD 662 ballistics fragmentation tests.