Oakley Shackle Sunglasses Matte Tortoise PRIZM Tungsten PRIZM Tungsten. The full-rim soft square frame shape boosts Shackles style-factor while the lightweight O Matter front ensures durability to support an on-the-go lifestyle. The Unobtainium nosepads and slip-on earsocks help keep the frame securely in place with a secure fit for those all-day adventures. Order Shackle with Oakley Authentic Prescription Lenses for consistent high quality in fit form and function from lens to frame. Specifications for Oakley Shackle Sunglasses: Manufacturer: Oakley Application: Outdoor Age Group: Adults Gender: Unisex Polarized: No Features of Oakley Shackle Sunglasses DESIGN: Full-rim frame designed for an an on-the-go lifestyle LIGHTWEIGHT AND DURABLE: Lightweight O Matter frame helps provide all day comfort PERSONALIZED FIT: Wire core temples help provide an adjustable fit NO-SLIP GRIP: Unobtainium nosepads and earsocks become tackier when wet to help provide retention OAKLEY PRESCRIPTION LENSES: Available with Oakley Authentic Prescription Lenses for consistent high quality in fit form and function from lens to frame Package Contents: Oakley Shackle Sunglasses Oakley OO9507D-0352: Shackle Sunglasses Matte Tortoise PRIZM Tungsten PRIZM Tungsten