Hi-tech photochromic and anti-fog coating! The inside of the lenses are laser-treated, these are not surface coatings. Long-lasting finish. Wipe your lenses as often as you like, without damaging the quality of the finish. Julbo anti-fog technology is used in Formula 1 racing for helmet visors.
> High-speed photochromic activation: lenses darken very quickly. Wide ranging: Cat 2 to 4. Ideal for use in shade or in full sun.
> Treatment anti-fog: no condensation, maximum lifetime.
> Available in RX Trem (optical sunglasses)
This photochromic lens, developed for the Speed range, is ideal for mountain biking, trail running and climbing...