You will be astonished at the weight of these super-light Crews CheckMate safety glasses! Even though this super-lightweight style is designed for fantastic comfort, it still does a great job with protecting your eyes. These safety glasses have a near total eye orbital seal, flexible bayonet temples, a universal nosebridge, and lenses that filter 99.9% of UV radiation, ensuring protection, compliance, and comfort for a variety of wearers. Still not convinced? Then consider this. These CheckMate safety glasses contain the exclusive Duramass scratch-resistant lens coating and meet ANSI Z87+ 2003 standard.