Sauna Hat, Fairy Tale Felted Wool Hat for Woman, Green 。I hand knit this hat from 100% wool then felted and shaped it. There may be loose fibers attached due to the felting process which I feel adds to the look. Please see measurement photos. Also listed in photographs is the hat on a mannequin head that measures 24 inches in diameter without hair. Note that hat narrows towards the top. Great for festivals, re-enactments and for those who wanna feel a little witchy every day! Designed specifically for using in saunas. As it\'s 100% wool (patons brand classic worsted weight) one can expect all the benefits of use in a sauna including prolonging time one can enjoy in a sauna. All hats I hand-knit myself. One can expect all the novelty and charm that can be found in hand-crafted pieces in my hats. This hat would fit a child size head nicely. It has little to no stretch to it. It\'s roughly 7.5\" measured across or around 22\" in circumference—note that it\'s a very tight fit for this size of head and will only cover the very top of a head this size. The mannequin head shown in the photos is 24 inches to give perspective.