Mraw Grey Letter Wrap Around Earmuffs Plush Plush ear pieces and a soft fabric cover a strong but pliable skeleton that grips the head gently but firmly, warm, less lint and good air permeability. It is the behind-the-ear warmers which is being worn on the back of your head, so be aware of that when you're putting it on. They are adjustable with a mechanism hidden inside; you just pull on the two halves and they lengthen (or push to contract). They adjust enough to suit a fairly large range of head sizes. The pressure on ears seems minimal -- they did not bother you at all after adjustment. Superior resin plastic skeleton inside, can be twisted & rolled up clockwise and counterclockwise into mini size, easy carry around your wrist or in your large pocket (such as cargo pocket on a parka or jacket) without taking up a lot of room. You can put the earwarmer under your hair without problems with static messing your hair.