SPY Optic Alcatraz Handmade Sunglasses | Polarized Styles Available Acetate Imported Composite frame Composite lens non-polarized Lens width: One Size millimeters ESCAPE THE ROCK: Unlike its namesake in San Francisco, the Alcatraz with Happy Lens is designed to let the good in and keep the bad out. Its a vintage design with a modern look. Add in a handmade acetate construction, smooth 3-barrel hinges, and 6-base nylon lens, and this Alcatraz has everything you need to escape the perils of lesser sunglasses PERSONALIZED PROTECTION: 100% UV eye protection effectively filter and block glare to protect your eyes and provide optimal visual comfort. Spy Optic lenses make a big impact in the comfort of your sunglasses by reducing glare and protecting your eyes from eye strain that typical lens cant reduce TOUGH STYLE: All Spy Optic sunglasses are designed to be lived in and are tested by world class athletes around the world. Alcatraz Sunglasses will stand up to any challenges you throw at them, the lenses are shatter resistant and the durable frames and hinges are made to last. Take these glasses anywhere with you HAPPY LENS TECH is the only color and contrast enhancing lens on the market that harnesses the beneficial aspects of long-wave blue light while offering protection from damaging short-wave blue light. Long-wave blue light helps you see better by enhancing color, contrast, and clarity, making colors more vivid and surroundings more defined. Once you try Happy Lens youll never go back SPY OPTIC is an unconventional, fun-loving family of athletes and artists committed to creating exceptional optical products. Established in 1994, we are an independent Southern California- based company. We design products that take style cues from the outdoor sports community were engrained in, as well as the lifestyle that surrounds it. We know youll love this SPY product