Lenses are made from 2, 7 mm bulletproof material with an anti-scratch coating & are dual pane, meaning permanent anti-fog. All lenses fit all goggles, whether they are Tear Off or Roll Off. Available in different colors and/or mirrored with various levels of Visible Light Transmission percentages (VLT). Features Bulletproof 2.7 mm thick Optically correct lens Permanent anti-fog lens Tear-off & roll-off ready with posts 28% to 83% light transmission (VLT) Compatible with all Leatt goggles