Features Curvature 6 Base Curvature Frame Tech Nylon Grilamid Lens Material 100% UV Protection PolycarbonateFrame Measurement 57-18-140 Ken Block Ken asked for a vintage sunglass with aggressive lines and SPY delivered, these are Ken Block signature shades so get ''em on your face.Curvature
6 Base Curvature - The base curvature corresponds to the curve of the lens. The higher the number, the higher the curve. 6 base styles have a “flatter” look. 8-9 base curves hug closer to the face. Frame Tech
Nylon Grilamid - These frames are crafted from bomb-proof nylon grilamid, an incredibly durable and lightweight frame material. Lens Material
100% UV Protection - The sun is harmful to our bodies and eyes, all Spy lenses are 100% UVA/UVB/UVC protected so you can worry about your goggle tan while Spy shields your eyes.
Polycarbonate - Polycarbonate lenses provide optically correct vision and are highly shatter-resistant. Frame Measurement
These measurements include the width of the lens, the width of the bridge and the length of the arms measured in millimeters. 57-18-140 Specs Lens Techblack/happy gray green lensHappy Lens smoke tort/happy bronze w/purple spectra lensHappy Lens Spectra soft matte black/happy gray green lensHappy Lens whitewall/happy gray green/red spectra lensHappy Lens Spectra