Men's Square Sunglasses Rune redefines RAENs best-selling Modern Classic frames, enhancing a familiar silhouette with distinctive angles and unique sculptural touches around the keyhole bridge and temples. The hard angles perfectly juxtapose the curved lenses, and new colors like Cove add depth and versatility. Rune is a guaranteed hit for any man or woman. Frame Material Twilight is an indigo, opaque crystal frame handmade from zyl acetate. Hardware RAEN Hardware Five barrel hinges with a wire core embedded in each temple for strength. Lens RAEN Lens Vibrant Brown CR-39 lenses manufactured by Carl Zeiss Vision. Featuring 100% UVA/UVB protection and 4 base curve.