I owned a previous pair of Smith Optics before. I had that pair for almost two years now and couldn't be happier. I only bought this because this style suited me more. I've had them for almost a month now and I absolutely love them. It's full coverage for your eyes and no frames blocking your vision. Sometimes I forget that I'm wearing them. The best thing about Smith glasses is that there is no eye fatigue. Unlike other brands that charge just as much or more, their products are designed to bend light and make it look natural so your eyes don't get tired from over-compensating. I can go on long runs, bike rides, and play various sports such as baseball and volleyball; and rarely do I ever have to fidget with them. They just sit snugly on my nose despite the sweat. All my friends have tried them on and everyone is envious. If you get brown lenses, they totally make a difference in action sports. It increases depth perception by filtering out scattered light, and allows you to see deeper shadows so you can gauge how far something is. It really helps if a volleyball or baseball is coming at you lightning quick.

I don't know what that guy did to his pair as described in the other review. These glasses are pretty sturdy just like any other, if not more. Even if your glasses break for any reason, Smith products have a lifetime warranty. They replace it for you at no charge. The warranty says they only cover defects, but I and plenty of others, actually broke them accidentally and Smith still honored our warranties. I sent them in, and I got a new pair within a week! (I broke my older version, not the current one) I've tried many brands and none come close to the quality and level of service of Smith sunglasses. I don't know why people even bother with other brands when this one takes care of you for life.