A design founded on modularity and scalability. • SI Ballistic Halo™ Goggle – Matte Black. • SI HELO – ALPHA™ a lightweight and soft rubberized gasket to block wind and dust. Oakley’s LPL-5+ lens provides ballistic protection along with 2.5 Optical Density (OD) that blocks 99.7% of 532nm wavelengths from green lasers & 1.5 Optical Density (OD) that blocks 99.7% of 405-450nm wavelengths from violet/blue lasers.