This is the second pair of these I've bought for my wife as she loves them but is a little rough on sunglasses. Although I also own Maui Jim glasses these are nice quality glasses and Kaenon is a top notch company and their customer service is awesome. The first pair my wife had was sent back after over a year for a defect in the tint and they were replaced without cost, one thing to note is this style is no longer offered by Kaenon. I also had a pair and after two years of wearing at work, the beach and in and out of salt and fresh water the tint started to delaminate, thanks to the lifetime warranty on the sr-91 lenses they were under warranty. Unfortunately, that style was no longer offered so I was sent a brand new pair of my choice as a replacement, not bad for two year old glasses. That pair had an issue with one lens that kept coming out so I called ad they sent me another pair in another style free of charge, awesome customer service.