Yacht Cap

To determine your hat size:

Measure around your head about 3/4 of an inch above your ears where your hat will be worn. (A cloth tape measure such as a seamstress or tailor uses is ideal.) It is usually helpful to have someone help you.

Pull the tape tight to measure within 1/8".

Range: 22 to 22 3/8" (55.9 to 56.8 cm) = Medium
Range: 22 3/4" to 23 1/8" (57.8 to 58.7 cm) = Large
Range: 23 1/2" to 23 7/8" (59.7 to 60.6 cm) = Extra Large