●Perfectly Fit - Precise cutting to fit your Contrail OO4147 frame ●Anti-Glare - Bowyer® polarized lenses are made of first-class materials. Protect your eyes in all directions. Reject the distorted colors and give you a high-definition world. ●100% UV Protection - Eliminate and filter scattered light in the beam, protect eyes from various harmful rays (UVA, UVB & UVC) ●Upgraded Harden Coating - Nano coating tech enhance impact resistance, exceeds ANSI Z80.3 and EN 1836:2005 standards ●Excellent After-sale Support - 365 days against manufacturer defects & online customer service in 24h