the small version of the popular eg2 from electric . the electric eg2-t.s comes with a super-wide field of view and toric lens. these innovative lenses not only provide the incredibly wide field of view, they also create a clarity that is hard to beat.of course, these goggles are helmet compatible and you can use them with prescription glasses.purple chromethis lens is perfect for changeable conditions and poor visibility due to snowfall.transmittance of visible light: 23 %