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.red/red lensthis cylindrical lens is ideal for variable conditions.