Crews® BearKat® Safety Glasses feature a clear lightweight frame with non-slip rubber head grips offering more safety and comfort. Gray polycarbonate, Duramass® anti-scratch single lens with rugged construction provides wider unrestricted vision and filters out 99.9% of harmful UV rays. Safety glasses with integral side shields feature hybrid type, flexible temples with black, non-slip temple sleeves for maximum comfort. Glasses with 12% visible light transmission meet ANSI Z87+, AS/NZS 1337.1, CE EN166, CAN/CSA Z94.3, MIL-PRF-31013 standards and are sold as 12 pairs per box.