I bought persols to replace a pair that I had for years and lost. Unfortunately, after only a few weeks of wear, a screw has come loose that led to the sunglasses completely coming apart. The left and right lens are completely detached from each other. Nothing happened to spur this, just normal wearing. Since I had this exact repair for 3 years prior, I know that they are high quality sunglasses, so I am very disappointed that these did not hold up for the same level.