Well the gas cans looks alright and the optics are pretty dang tight. Love the hinges also. I think they sit a little high on the face and are best with those with larger cheek bones. These really don't fit tight my face and this is made even worse by the lack of temple grips. Really they fall off all the time. They are good shades to kick back and have a beer but you will need another pair of shades for doing anything active. Unless you have a large head I wouldn't even recommend fishing in these for fear of them dropping in the water, but boating, cycling, jogging, and any sport are pretty much out the question. There is a reason some of friends have lost a set of gascans.