Motorradbrille Photochrome Automatische Scheibentönung Antibeschlag – by Bertoni F125 Selbsttönend: motorcyle sunglasses with photochromic antifog lenses made by anticrash policarbonate 2,2 millimeters of thickness. The photochromic lenses are recommended in any condition of light, thanks to the capacity of automatically changing colour. The back of the front frame is covered by a removable windstopper and anti-sweat foam. Lenses are treated by a special resin that avoids the fogin up. Bertoni provides lifetime after sale service for all Bertoni goggles and sunglasses.