However, over the next few days, I was delighted to discover that they loosen up considerably. No razor burn. )These are terrific. It looks good and feels nice when you put it on the airpods case but it seems like it doesnt exactly fit. Ich muss zugeben ich bin positiv überrascht von der Weiterentwicklung. I wish they did make the top with some sort of clear silicone strips along the inside edge of the case so the top will stay on securely. This CURT trailer hitch is beyond sturdy and comes with simple instructions. 5R, so I ordered 11. They feel very durable because the wire that wraps around your head is relatively thick compared with some of my other headphones. I have purchased these as a spare.