I was initially sceptical of these mainly because of the color; white. Didn't think they would look that good but after a couple of days the look grew on me.
On the technical side I thought the very snug fit, made even better with the pull cord was effective at keeping spin drift, snow and wind out. The lenses wrap the face very well and prevented light leaking around the rims so they do exactly what they are designed to do. The antifog feature also worked flawlessly. They are very light but a little bulky compared to my old CEBE 395's so the carry case is a necessity.
French quality was top notch however; the dark lenses saved my eyesight in bright, snowy conditions.
As with all glasses, sunscreen is necessary to prevent the nose and cheeks getting fried from the UV reflection from the lenses.
Expensive but still cheap and highly functional especially when compared to stupid designer rubbish sold at all those franchised sunglass stores you can't avoid at the shopping mall.