You're here because you need a replacement lens to handle a different light condition. Or you're here because you somehow lost a lens like a fool. Sorry that's a bit harsh, maybe you lost your lens more like a ghoul? Ghouls are great, especially little green ghouls. So pick out the one you want for your O2 XM goggles and get to ghouling.
Dual-Vented Lenses with F2 Anti-Fog Coating - Goggles with dual vented Lexan lenses take advantage of Oakley F2, an anti-fog coating developed specifically for cylindrical lens geometry. In addition, all Oakley snow goggles undergo rigorous testing to ensure venting is evenly balanced for added protection against fog buildup.
Combine that with full 360° frame venting and you're ensured optimum airflow to help eliminate fog buildup.
Impact Protection - Oakley's performance goggles meet and exceed the impact-resistance standards of the America National Standards Institute.