We (I bought them for my spouse) have owned 2 pair of these MJ Makaha 405-10, the first pair lasted about 24 months before the lens cracked at the screws at the nose bridge. The second pair cracked in the same place within 18 months, despite handling them with extreme care (she only uses them for beach walks and driving, no sports). She says these are the most comfortable glasses she's ever owned, so for that they get 2 stars (her previous pair of Maui Jim's were Cyclone 136 which were heavy and uncomfortable). But when you pay this much for sunglasses they should last longer or be repaired without a runaround. When she bought the first pair at our local MJ retailer here in Hilton Head, I assumed the lenses were replaceable when I saw the screw mounts, which I found out was incorrect. After they broke, the seller offered the send them back to MJ for repair but the cost was prohibitive, and in my opinion should have been free anyway. But since they were so comfortable, I went ahead and got her another pair. But now that the second pair have the same 'defect', I will not waste another penny on Maui Jim's. Which is too bad because I know they are a quality brand, but I refuse to support a company that won't stand behind their product- especially after I gave them a second chance. And if you peruse the reviews here and elsewhere, you'll see this is not an isolated incident or due to counterfeit products. I'll probably try the sunglassfix replacement lens since we now have 2 perfectly good frames, and hopefully they'll last longer than the original lens. If not, here we come Tifosi.