US Safety U00258000B Aston Polycarbonate General Purpose Safety Glasses, Clear Lens US Safety Aston polycarbonate general purpose safety spectacles. Molded from 100 percent polycarbonate material, Aston safety spectacles is designed for impact protection. Featuring wide vision wrap-around styling provides unobstructed peripheral vision, a contoured protective brow-guard which helps prevent particles from entering from the brow area, and molded-in comfort nose bridge that provides a comfortable fit on the nose. UVA-UVB protection, non-conductive, ANSI/ISEA Z87.1 eye and face protection. Available in clear lens.