Salomon Fury Sunglasses High Altitude Lenses - Combination of technologies ensuring maximum eye protection even at high altitudes. Cat.4 - For exceptional levels of strong sun. (Not suitable for driving or road use). 100% UV Filtration - The lenses protect you up to the highest UV exposure level, providing 100% protection. Easy Clean - Anti-static, hydrophobic and oleophobic coating strengthens the lens and improves its intrinsic qualities without altering its colour. All of these characteristics guarantee a smooth surface, resistant and extremely durable. Anti-Reflective - Improves vision through your lenses, dispelling reflections of light. Reduces eye fatigue.