Review on Adjustable Waterproof Unisex Earmuffs by Warmers by Ian Iknokinok

Original review: For $12. It's a downhill buy for a price. He is light. About the size of a softball and shrinks (folds) to about 4 1/12 inches when bulky. Head Size: I measured the distance between my ear (at the back of my head) and my ear and my height came out to be 10 1/2 inches. I'm 6ft 4in so it fits me from that perspective. If you have a larger/longer dimension I would try a different product as there is no extension after that. You click on the "warm" zone of the headphones. I will be testing them all this winter and will update my review after a good month of cold weather.