Retro-inspired goggles with magnetic lenses . The Jam has a robust TPU frame for high wear and abrasion resistance and the Magnetron quick-change system. The innovative F°SCAPE Anti-Fog technology uses tiny etched channels on the glass surface to ensure that condensed water is immediately drained away, preventing the glass from fogging. The FREE°D technology corrects light refractions, thereby preventing optical distortions.Brown/Red LensThis cylindrical lens is ideal for variable conditions.