Bulletproof With Anti-Fog LensThe all new Leatt Velocity 4. 0 MTB goggle is here, specially designed vents in the goggle foam and a unique Mesh strap ensures the helmet ventilation still functions. A Bullet proof, ventilated RideViz lens with permanent anti-fog will ensure you have clear vision and the best protection for your eyes, along with great looks and the perfect fit, all this at a price that won't break the bank!