Guideline Eyegear Wake Bifocal +1.50 Sunglass, Tortoise Frame, Freestone Brown Polarized Lens, Large/X-Large Grilamid BTR bio based polymer frame, fully recyclable wide temple lines and deep lenses eliminate stray light from every angle Locking hinges give frame high-durability and enhancement to comfort - includes Neoprene case with Velcro closure Polarized Polycarbonate Lens 100% UVA/UVB Protection Freestone Brown Lens tint transmits a wide spectrum of colors for truer color perception and high contrast; VLT 12.4% Performs optimally in lower light conditions and perfect choice for shallow water conditions; Great driving sunglass