WHAT'S YOUR HEAD SIZE?

Use a string to measure the circumference of your head at the widest point. Measure the string and use accordingly. If in between sizes, go up to the next size. You can always use the hat adjustment tape or pull tab in the dress hats.  

SIZING CHART

XS S M L XL XXL One Size (OS)*
CM 54 55.5 57 59 61 63 55–61
Inches 21¼ 21⅝ 22½ 23¼ 24 24⅞ 21⅝ – 24
US Sizes 6⅞ 7⅛ 7⅜ 7⅝ 7⅞ 6⅞ – 7⅝
UK Sizes 6⅝ 7 6¾ – 7½