New York Hat Co. Wool Blue Gray Tie-Dye Packable Cowboy Hat Wavy Pale Marbling Blue 23" Circumference Measurements approximate All hats are measured on the interior circumference. Hat size is based on the circumference of the head. For more information on how to determine your hat size check out my about me Sizing Reference Glass Mannequin Head is approximately 22 inches I created Plasma Beams to support my dream of being an INDEPENDENT designer and entrepreneur! Check out my boutique stocked with one-of-a-kind items for all of your fabulous UPCYCLED FASHION needs! *Follow @plasmabeamz Wool Hat, Rancher Hat, Trendy Hat, Fall Hat, Outdoor Hat, Cute Hat, Riding Hat, Hat with Style, Hats that make you smile. L1-1277 QQQ12