Jaimie Tani 5 I purchased these because I bought masks with straps that were shorter and less elastic than usual, which gave me severe headaches from the ear pain I got from wearing them normally.They work as intended - they keep the pressure of the straps off my ears, which is a huge relief on the days that I have to work in the office from morning to evening. They can be worn under the hair to hide the bead fastener, though this makes it more obvious that your mask straps are angled downward off your ears, or o pulled up over a ponytail, which looks more natural at first glance. The bead fastener tightens and releases with no issue. Having it looped around your own neck makes it easy to take off your mask briefly without worrying about where and how to put it down.I have a small head and wear children's size masks, so I'm not sure how well these would work for an adult man. There is no stretch, so any lengthening would have to come from the mask straps. So I would recommend these for women and children who complain of ear pain, especially those who have to wear masks for long periods of time.