Safeyear over-glasses goggles are made of high-density PP frames and the PVC lenses with side protection. The legs which can be adjustable are made of PC material and Nylon material. The band is elastic and adjustable rope. Our over-glasses safety goggles has the feature of Anti-Fog, Anti-UV, and Anti-Scratch. Because the frame is larger, these safety glasses can protect a large area around your eyes. In addition, the over glasses are very friendly to people with short sight because they can cover myopia glasses.