They look and fit great, but - given they're marketed as appropriate for outdoor activity, I was disappointed with the slip factor. Despite the rubber stoppers (which seem to massively increase the price of the glasses) they slide down my nose quite a bit (not absolutely awful, but not great either). Also, they absolutely don't stay on my head when I pop them up - every time I try to put them on my head on entering a darker area, I feel like a seal balancing a ball on its nose. The slightest move and they slip straight off. I've never owned a pair of glasses, cheap or expensive, this bad for it. I sure hope they're as scratch proof as they say, as I'm forced to cram them in my handbag instead. I think the combo of gloss frames with no grips for behind ears, and the extra/fancy hinge that lets the arms flex outward more than usual (so not gripping on the head at all) sets them up for this.