Tonic Bono sunglasses delivers on quality and style with a slick and stylish frame to be worn on all occasions.
The photochromic copper lens is a high contrast copper bronze. This lens is photochromic so it darkens or lightens depending on ambient light conditions. This lens has been developed to give the highest quality optics in fresh water and salt water conditions. The Photo Copper can be comfortably worn all day in all light conditions.