• Small/Medium usually fits approximately size 7 to 7-1/4 hat size (head circumference 21 7/8” – 22 5/8”
• Large/XL usually fits approximately size 7-3/8 to 7-5/8 (head circumference 23” – 24 3/8”) hat size.

Safari Hatbandoos are oversized to allow for the crystals to swell. By leaving it in water a little more or a little less you can adjust the swelling of the band thus adjust the size. We suggest you check it occasionally as you are hydrating to create a perfect fit for you.