Spy Optic Helm Whitewall Polarized Wayfarer Imported Plastic frame Plastic lens Polarized 100% UV protection coating Lens width: 57 millimeters Bridge: 18 millimeters Arm: 140 millimeters Spy's happy lens is the only color and contrast enhancing lens designed to maximize the transmission of the sun's "good" rays - whilestill blocking out its "bad" rays- so you can enjoy nature's awe inspiring beaty in ways you've never seen before. Distortion free arc lenses Uplift in mood and alertness Lenses are prescription ready (Rx-able)