Numa Tactical Glasses - Athlete Inspired, Soldier Tested. Safety-rated eye protection that exceeds ANSI z87 optical and safety standards for industrial and military use. Super-rugged Tough-Flex™ frames. Feather-weight Lite-Flex™ frames. Optically perfect decentered lenses with super-slick, smudge-resistant hydrophobic-antifog and scratch-resistant hardcoat.