These are very comfortable, easy to adjust and should fit most wearers. Excellent for your Doctor Who cosplay and can be worn any day, of course. Covertible for either button or clip-on to your skinny black jeans. I would order from this company again - very good quality (I had been crossing my fingers) so would recommend them to other buyers. Thank you Amazon for the brilliant addition to my costume. Perfect with the matching bow tie. And a fez.