Guideline Eyegear Alpine Sunglass, Crystal Graphite Frame, Deepwater Gray Polarized Lens, Large Grilamid BTR bio based polymer frame, fully recyclable has tremendous eye coverage and sleek look with no-slip nose and temple pads High polarized protection for slopes or seas - includes Neoprene case with Velcro closure Polarized Polycarbonate Lens 100% UVA/UVB Protection Deep Water Gray tint transmits all the colors in the spectrum and maintains the most natural of the existing contrast and color; VLT 11.8% Ideal for sports both on-the-water and nearby in medium-to-bright sun conditions; Great all around choice