Place your measuring tape just around your head and measure around to the front of your head just above your eyebrows to find your perfect fit. Make sure the measuring tape is not too snug or too loose. 

 

SIZE DIAMETER US SIZE
56-Small 21- 22 inches 6¾-6⅞
57-Medium 22.5-23.5 inches 6⅞- 7
58-Large 23.5-24.5 inches 7⅛- 7¼

 

If you are in between sizes we recommend sizing up. Our size medium is our average or standard size fit.