Only had them a few days but am more than happy to recommend them. good charging case, all in all a good product. and the size they say is the size it is. I do have large feet and finding shoes is usually difficult however I have never had a problem fitting into a size 11 sandal, from anywhere. When my feet are damp / wet, they grip. I had some people say the calls sounded clear and others say I either sounded a little far away or it sounded like I was in a tunnel. Everything that KOSS published at an official web-page meets with what ive got. 1) one that would not obstruct any operation (like swiping up from the bottom to unlock the iPhone Xs, or like covering the little microphone when wanting to speak to text). Just what I expect from Logitech. These New Balance shoes feel hard with no accommodation while playing.