Zanheadgear Road Hog II Convertible Sunglasseses/Goggles (Black, One Size) Features the patented QRS for quick conversion from sunglasses to goggles and 2 easily attachable/detachable foam inserts Frames are molded from the Swiss material Grilamid which is lighter, more flexible and more durable than conventional plastics Kit includes 4 sets of easy-to-change lenses, Anti-fog smoked, amber, clear and dual-grade reflective Polycarbonate lenses are shatter-resistant and provide 100% protection against UVA and UVB ultraviolet rays Also includes protective belt case and lens cloth