hav2826555 wrote a review of Julbo Instinct Sunglass - Zebra Anti-fog Lens on April 23, 2011
These fit like a charm--and I usually have trouble finding a pair that fit--and stay in place.
The lenses change for the light conditions so quickly and easily that I don't even notice. At first I was skeptical but they quickly became my favourite pair.
The only reason they don't get 5 stars is that I'd love to have the same lenses with polarization.