The Leatt Velocity 4.0 MTB X-Flow goggle brings a whole new level to goggle ventilation. It has specially designed vents on the top and bottom of the goggle frame and lens as well as a unique mesh strap which ensures helmet ventilation still functions even when covered. The goggle features the RideViz lens. A three-layer laminated, anti-fog, bullet proof, and anti-scratch lens which ensures 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!