The Uvex Astrospec 3000 sets the standard for comfort, protection and style. Adjustable lens inclination and temple length allow a custom fit. Spatula-style temples are made of nylon. Lightweight unilens design offers panoramic vision. Clear lens features the Ultra-dura Anti-scratch Coating. 2mm thick polycarbonate lens is easy to replace with the economical lens replacement system. Safety glasses meet military V0 ballistic test for impact and ANSI Z87.1-2003 (High Impact) and certified to the requirements of CSA Z94.3 standards.