Venture II Reader Safety Glass Clear +1.5 H2X Anti-Fog Lens with Black Frame Lens insert is out of user's direct line of vision. Temples adjust to four different lengths. Nose buds secure the glass and prevent slipping. 9.75 base curved lens provides full side protection without distracting seams or traditional type side shields. Scratch resistant polycarbonate lens provides 99% UVA/B/C protection. Lens Technology Clear Lens: General purposes for indoor applications that require impact protection. Visible Light Transmitted 380-780nm 96% UVA, UVB Blocked 200-380nm 100% Blue Light Blocked 400-700nm 9% IR Blocked 780-2000nm 18%