The Speke are stylish, lightweight, low profile googles. Only 16% of light passes through this non-polarized smoke colored lens. Blocks 99.9% of UVA/UVB/UVC rays RX insert included Adjustable elastic strap Anti-Fog, Anti-Scratch lens coating Fully compliant with ANSI Z87.1 2003 safety standards High Mass Impact, Ball Drop Impact, High Velocity Impact