The Oakley SI Ballistic M Frame Alpha is designed to be compatible with a wide range of helmets and helmet-mounted night-vision devices. The High Definition Optics lenses offer 100% protection from harmful UV rays, and are made in a hybrid shape to create a wider field of view. The lightweight O Matter frame is impact and chemical-resistant for ultimate durability, and features an Unobtainium nose pad to stay in place, even when wet. A trapdoor exchange on the frame allows you to rapidly and easily change lenses to maximize visual performance in any environment. Alpha M Frame lenses are fully compatible with the Halo goggle and Halo-Alpha Gasket accessories for total versatility. Constructed to meet stringent ANSI high-mass and high-velocity impact standards, these glasses deliver ultimate optical performance without distortion.

Features of Oakley SI Ballistic M Frame Alpha

• Weight: 1.05 oz
• Meets or exceeds MIL PRF-32432 ballistic fragmentation impact standards
• Meets or exceeds ANSI Z87.1-2003/2010 high-mass and high-velocity impact standards
• Frame made of impact and chemical-resistant O Matter frame material for all-day comfort
• Hydrophilic Unobtainium nose pad creates a secure fit, even when wet
• Frame is fully compatible with ACH, CVC, MICH, PASGT, Ops-Core, Team Wendy and Crye helmets along with helmet-mounted night vision devices
• ALPHA Eco System is built for Alpha M Frame Lenses for compatibility with the Halo goggle as well as Halo-Alpha Gasket accessories
• Thin stem technology is compatible with over-the-ear hearing protection and communication devices
• Plutonite lenses made from Oakley's high purity optical-grade polycarbonate
• Three-point fit holds the lenses in a precise optical alignment
• Hybrid lens shape creates a greater field of vision and maximizes comfort
• Lenses offer 100% protection from UVA and UVB rays, as well as harmful blue light up to 400 nm in wavelength
• High Definition Optics (HDO) uses a collection of patented technologies to meet or exceed ANSI standards for visual fidelity, optical clarity and impact resistance
• Back surface of the lenses has a permanent anti-fog coating
• Trapdoor exchange allows for fast lens changing to maximize optical performance in any setting
• Clear lenses are best worn in low to no lighting settings; ideal for indoor use
• Grey lenses meet MCEPS neutrality and chromaticity standards; ideal for medium to bright lighting conditions
• Frame designed to fit all face sizes