They block 100% of the sun’s harsh UV rays, and they reduce the often blinding glare that reflects off water, snow and shiny surfaces. These advanced lenses enhance contrast, depth and color perception. And they reduce eye fatigue that can occur from long exposure to glare. Activities like boating, skiing and driving are simply more comfortable when wearing Sutton sunglasses. They shrug off normal wear and tear too, so you can enjoy scuff-free visibility for the long term.