Fuzion Lens Technology Advanced Flow Venting Technology allows more air flow reducing inner goggle humidity 5MAG lens retention system (magnetic quick-change lens system) Soft goggle frame for unparalleled comfort and fit Hard lens frame ensures an optimal fit, and a great sealing with 5MAG Lens Retention System OTG, Over The Glasses, compatible Shear Bar interface between lens and frame keeps lens in place, even in hard crashes