The RX-2 comes as standard with LT 80 Grey tint lenses. The RX-has both sporting and medical applications and is particularly suited to higher power prescriptions. Designed on the concept of a conventional pair of Sunglasses, the RX-2 has a removable gasket that when fitted creates a seal around your eye orbits. The separate moisture chambers are perfect for sufferers of dry eye syndrome, keeping out heat, cold and wind allowing you to resume every day tasks. There are also a whole host of Sports that can also benefit from eyewear that keeps out the wind dust and debris such as, Bikers, Mountain Bikers, Cyclists, Skiers, Climbers and Runners and motoring are just some of the applications.