The Oakley SI Ballistic M Frame Alpha Operator Kit offers advanced protection from impact and debris both on and off the battlefield. This Oakley M Frame Kit includes an SI Ballistic M Frame ALPHA frame, SI Ballistic Halo Goggles, SI HELO ALPHA Gasket, and clear lenses that are compatible across all platforms. A VELCRO split strap keeps your ballistic eyewear firmly in place, while a retention lanyard prevents loss when not in use. The Oakley SI Ballistic M Frame Alpha system meets or exceeds ANSI Z87.1 high mass and high velocity impact standards.