They are the most convenient glasses I've ever had. I would always lose my sunglasses because typically, glasses are unwieldy when you're going inside and outside constantly. You can't put them in your pocket (too big), I can't put them on the top of my head (my head is mis-shapen) so I end up putting them down on a table and losing them. But with Roavs, I can just fold them up and put them in the case or my pocket. It's the longest I've gone without losing them - over two years now! Plus, the optical clarity is excellent and I look pretty cool with them. Easy to clean, easy to wear, easy to carry. They're awesome and I might buy another pair because my friends LOVE them.