The last Ray Bans like these lasted almost 20 years of constant use before the hinge broke from the frame. These seem to be of the same construction as my previous pair so I hope they will endure as well. One problem I did have with the old pair and the new pair seems susceptible of as well is the lens can separate from the frame as the lens is only held in place by the grove in the frame. I was always able to get it back in place and secured it by squeezing the frame into place to hold the lens. In addition these will make you look cooler than you really are but at a price, of course.