Guideline Eyegear Wake Sunglasses with Freestone Brown Polarized Lens, Tortoise Whether your looking for massive coverage or you desire a large fit, the Guideline Wake is a perfect sunglass The Wake features innovative fully recyclable bio-based polymer Grilamid BTR frames with simple wide temple lines and locking hinges Performs optimally in lower light conditions and is the perfect choice for shallow water conditions Freestone Brown Lens tint transmits a wide spectrum of colors for truer color perception and high contrast These sunglasses have a Polarized Polycarbonate Lens that offers 100% UVA/UVB protection