Protections Ski Goggles Julbo Proton Photochromatic 8-12 Years. With more than 5 different shades, Proton goes for color: now thats what I call pleasure! And pleasure that lasts all day as it can even be fitted with a Chroma Kids photochromic lens to adapt to any changes in the light. Its wide field of vision and perfect helmet compatibility will allow 8 to 12-year-olds to ski comfortably, whatever the weather. Features:- Cylindrical lens- Anti-fog coating- Overstrap: Offset strap for adaptation to all types of helmet.- Anatomic frame: Cuts on the frame for more flexibility.- Soft Foam: Single density foam.- Air Flow: Integrated air fl ow in lenses, preventing fogging.