Measuring for your head size is both an art and a science. You
can use a tape measure (or a length of string that you will have to
hold up to a tape measure) to determine the length. Place the string or
tape around your head about 1/8 above your ear, across the
mid-forehead, completely circling your head. Hold the tape firmly, but
not too tightly (you don't want your eyes to pop out). Basically you
need to measure your head exactly where the hat will sit. If your
measurement falls between sizes, choose the next largest size.
Another
valid method to determine hat size is to try on a hat and check the
size. If you don't own a hat, then try on a random hat next time you
are visiting a shop that stocks hats. Sizes, even though they do vary
depending on the hat maker, are technically universal.
Please
understand that hats are like other apparel in that sizes can vary
somewhat from one manufacturer to another. We cannot guarantee that
following these instructions will assure a perfect fit, but perhaps
they will help you get there.