Fuse Lenses for Wiley X Slay Plastic frame Plastic lens Polarized lenses Lens width: 68 millimeters Fuse Cosmic Mirrored Tinted Lenses. Purple Metal Mirror Coating over a grey lens base. Warm 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.