Quick answer: Wrap a soft tape measure around your head about 1/8 inch above your ears and eyebrows. About 55 cm is S, 57 cm is M, 59 cm is L and 61 cm is XL. Between sizes, go up.
Measure correctly
Keep the tape level all the way around where the hat will sit. Measure twice and use the larger number.
Size chart
S: about 55 cm (6 7/8). M: about 57 cm (7 1/8). L: about 59 cm (7 3/8). XL: about 61 cm (7 5/8).
Crushable or stiff?
A crushable wool felt hat packs easily; a stiff wool hat holds a sharp shape.
Frequently asked questions
What if I am between sizes?
Choose the larger size; a thin hat sizing tape can snug it up.
Do women's hats use the same sizes?
Yes, the same head measurements apply.
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