San Francisco Giants New Era Mother。BRAND NEW one size fits most with the interior measurement 21.75 inches or 56 cm. This incredible hat is so eye-catching, you\'ll always be the center of attention with it on your head. The crown measures approximately 4.75 inches tall with a 5 inch floppy brim for a total circumference of 18 inches. This wonderful hat\'s wide brim is designed to keep you cool while enjoying your day out! Please look at pictures for measurements, condition of item and ask any questions you may have prior to purchase. No returns accepted. All my items come from a smoke and pet free home. I am always open to reasonable offers, and will do my best to accommodate you. Thanks for looking.