Spy Helm Sunglasses Ken Block's swagger and adventurous driving style helped shape the Helm. Ken asked for a vintage sunglass with aggressive lines and under his direction, SPY delivered. -Designed with Ken Block -Built from bomb-proof Grilamid -6-Base PC lenses -100% UV protection -Contrast logo detailing -Frame measures: 57-18-140 SPY HAPPY LENS The Spy Happy Lens technology lets in the good long-wave blue light that promotes balance in the bodys circadian rhythm, blocks harmful bad rays, and combines crisp, color contrast enhancing lenses and a Trident Polarization for the ultimate viewing experience.