The best thing about these sunglasses, aside from the low price, is the ergonomics. I always complain of headach-inducing pressure points at the temples, but the Eclipse's flexible, foam-lined frames never bothered me, even after hours of activity. With their snug fit and the rubberized lining along the stems and nosepiece, these glasses aren't likely to go sliding off your noggin. But if they do, you'll have a a much better chance of retrieving them. Instead of sinking to Davy Jones' Locker, they'll wash up on the beach at Treasure Island.