To find your perfect fit, use a soft tape measure—or a piece of string if you don’t have one handy. Gently wrap it around your head, sitting comfortably where you’d like your hat to rest—typically about a finger’s width above your ears. Make sure it’s snug, but not tight. You’re aiming for comfort, not pressure. Take note of the measurement (preferably in centimeters). If you're using string, mark the length and lay it flat against a ruler to get your size. Refer to the conversion chart below to find your measurement in inches or standard US hat sizes.