Bulletproof, Permanent Anti-Fog, Posts for Tear-Off and Roll-Off Leatt lenses are made from 2.7mm bulletproof material with an anti-scratch coating and permanent anti-fog function. They have posts for Roll-Off and Tear-Off and fit all Leatt goggles. Available in different colours and with different VLT ratings (visible light transmission percentages). Bulletproof 2.7mm thick optically correct lens Permanent anti-fog function built into the inner lens polymer Tear-off and roll-off ready with posts 9 lenses available from 20 to 83 percent variable light transmission (VLT)