If you are looking for a light sensitive lens in a large frame then this is it. Julbo is a fantastic company and it's a shame that they are not as heavily hyped as some of the better known sunglasses companies that don't produce sunglasses anywhere near as nice as Julbo at higher prices. This sunglasses can be worn indoors and outdoors and the lens color seems to improve contrast and detail. The lens, at night, actually clears up to be able to drive with these on at night and during the day they darken up to a regular sunglasses lens darkness. I use them for Winter/Fall driving and where I expect changing light/weather conditions. They are great driving lens and also fashionable. These are a large from and by large I mean large in the current fashion trend. These frames will work with medium and large heads but not small heads. The case is great too. I recommend these.