The biggest issues is the the straps loosen up very fast during a run, making it very inconvenient to constantly re-adjust them. I got them in white trimmed in a caramel color. Bought these for my husband for Christmas. I live in Birkenstock sandals so I thought these would be good, I needed a non slip work shoe, they were too wide for my feet and not that comfortable. I only noticed it when nothing was playing, as they were very quiet, so its nothing that would affect listening with them, but it was a bit annoying when pausing whatever I was listening to, and I was more concerned about the cause (a potential quality issue). I was pleasantly surprised by how nice the silicone feels! I read the reviews that they run large so I ordered a half size smaller. Overall it performs well, but I do have a slight issue plugging it into the amp for my electric guitar. It is also not losing the creases created on the cable when the item was packed. Nice sound and comfortable.