The first universal safety spectacles that fits perfectly to every/each face: a "memory form" bridge, fully adjustable in height, depth and width, an ultra-enveloping frame with pivoting ergonomic temples, embraces precisely all face shapes. Pivoting, non slip & ergonomic temples Platinum coating "Memory form" bridge Anti-scratch The revolutionary B-Flex technology provides unique flexibility Twilight lens are designed and used in low light conditions to improves contrast The platinum coating provides a high resistance to scratching, to the most aggressive chemicals and delays fogging