I had a couple of sores appear in my mouth. so disappointed because was hoping for a sneaker alternative since Im moving somewhere where they dont wear sneakers. really happy with this little case. Beautiful color paired easy fit perfectly great price. It?s flimsy and not really attached well. Result was damage to the white wood. The arch support is perfect, and I have found that my legs and back hurt less. If you?re looking for the AirPod alternative, give these a try! Not bad for glass beads! Just have to get used to the controls being on the other side.