The Oakley SI Heliostat Matte Black USA Flag Frame is a rugged and reliable choice for outdoor enthusiasts. Its matte black frame provides a sleek and understated look, while the USA flag emblem adds a touch of patriotism. The PRIZM Gray lenses offer superior optical clarity and protection from harsh sunlight. Whether you're hiking, hunting, or simply enjoying the great outdoors, this frame is designed to keep up with your active lifestyle. Fast shipping ensures that you can get back to your adventures quickly.Key Benefits and Features:Frame Color: Matte BlackLens Color: PRIZM GrayLens Height: 38.6mmLens Width: 61mmFrame Material: Nylon/Resin