Oakley’s ultimate shooting shades, Ballistic Shocktube Sunglasses are rugged, stylish, and comfortable. Constructed from Oakley’s stress resistant O-Matter frame material using a three point fit system, these sunglasses allow for all day comfort and protection. The lenses can be quickly and easily swapped by removing the lower jaw of the frame with a torx bit. Maximum comfort and maximum protection makes the Ballistic Shocktube a best seller amongst police, military, and security professionals across the US. Features of Oakley Standard Issue Ballistic Shocktube Sunglasses Lightweight and Durable O Matter™ Frame No-Slip Unobtainium™ Earstems and Nosepiece Three-Point Fit Designed for Comfort and to Keep Your Eyewear in Place Plutonite™ Lenses Provide 100% UV Protection Hex Key Included for Quick and Easy Lens Changes MIL PRF 32432 Compliant Oakley SI Ballistic Shocktube Matte Black w/Black Iridium Lenses OO9329-05