After 200 miles, they are still rock solid. If you like classical music go for it Noise Isolation - If I had smaller ear holes, they would probably do a much better job. Me encantaron de buena calidad Just like described. These foam earbud tips do not fit my headphones! Had high hopes for these, and normally buy Reef, so thought Id give them a go. I have so many now in every color and design. We could not see out the back window but I figured with all the stuff we where taking. Really Stupid that the locks are a separate cost though as this is not a cheap carrier.