The Klondike Plus® Series from CREWS® features the same Duramass® scratch-resistant coating , strong, lightweight polycarbonate lens with 11 degree base curve safety, gel nose piece, safety standards, style and comfort of the Klondike® Series, but with the added convenience of 5-position ratchet temples . The Klondike® Magnifier from MCR Safety®--with bi-focal magnifier lenses-- also provides the same modern style combined with excellent fit, comfort, and adjustability, while meeting ANSIZ87.1 + high impact standard with a range of magnifier options. Case for storing glasses included. Both styles filter 99.9% UV radiation. Sold by the pair.