The Oakley Mercenary Prizm Sunglasses provide you with a classic, sporty look while offering comfort and performance during a variety of activities. Its durable O Matter frames are lightweight for comfort during long periods of wear while also absorbing impact to withstand the rigors of daily wear. The Prizm lenses enhance visibility by maximizing color contrasts so you can confidently charge ahead. And when you're working hard on a strenuous uphill or long hike, the nose and temple pads deliver a secure fit when expose to moisture so you won't have to worry about losing your glasses.