Low-cost alternative to safety eyewear that fits over most prescription spectacles. Uvex permanent lens coating technology with anti-fog coating on the inside, and scratch-resistant on the outside. Side-arms graduate from hard to soft material and gently grips the side of the head for a secure fit. High resolution lens for improved optical clarity (designed specifically for wearing two pairs of glasses). Polycarbonate Lens Construction Anti-Scratch Grade 1F Impact Lens Optical Class: 1 100% UV Protection Anti-Fog Low Energy Impact Soft Grip Side-Arms Polycarbonate Lens Construction Anti-Scratch Grade 1F Impact Lens Optical Class: 1 100% UV Protection Anti-Fog Low Energy Impact Soft Grip Side-Arms