THE EQUILIBRIALIST is an American company offering stylish handmade visor goggles for selected retro full face helmets. For the BILTWELL Gringo you can get the visor "Knox Maska" which is available in different frame colours and with various lens tints. "Knox Maska" fits the Gringo's face opening perfectly and is attached to the helmet just like a goggle. The visor's frame is made from synthetic leather and available in the following colours: black, tan, burgundy, blue and yellow. The lenses are available in either clear or tinted.