comfort and performance - the cleaver goggle. the cleaver goggle from vonzipper combines the best protection with the most modern design. vonzipper's goggle technology features 100 % uv protection, anti-fog coating, helmet compatibility and fleece lining.fire chrome lensdesigned by vonzipper, the wildlife lens has a contrast-enhancing filter that dramatically improves your ability to see contours in all lighting conditions, giving you maximum sharpness and clarity like you've never experienced before. the wildlife fire chrome lens is suitable for poor visibility as well as blue skies.transmittance of visible light: 24 %