Fuse Lenses for Spy Optic Hielo Plastic frame Plastic lens Polarized lenses Lens width: 57 millimeters Fuse Chrome Mirrored Tinted Lenses. Super Strong Silver Metal Mirror Coating over a grey lens base. Grey view. Grey tint gives true color perception. Non-polarized lenses. Completely block harmful UV rays, providing 100% UV protection Fuse Force scratch resistant hard coating Lens Category 3, Ideal for Bright Light Custom Made to easily interchange with your current sunglasses.