Part of Oakley’s Ballistic ALPHA System, M Frame Alpha Ballistic Glasses are designed to maximize both comfort and protection. Like M Frame 2.0, the M Frame Alpha features comms friend temple arms and a clip that securely holds the lens in place. Because the M Frame Alpha is designed for the world’s most elite warriors, it’s fully compliant with ANSI Z87.1 and MIL-PRF-32432 requirements for high-mass and high-velocity impacts. The M Frame ALPHA is compatible with the SI Helo Gasket that offers additional protection by creating a seal that blocks high velocity air, dust, sand, and debris that is generated by rotary wing aircraft during infil and exfil operations.