95% cotton, 5% spandex Brim : 6cm. Simply measure the circumference of your head holding the measuring tape snug, but not too tight. Just above your ears - which is right about where your hat will sit. No measuring tape? No problem. Cut a 30'' piece of string. Use the string to measure your head, then measure the length of string used.
Bailey of Hollywood - Flat Cap Men Dumas - B07FDHSHPD