The XXL size fits heads ranging from 57 to 62 cm, depending on how thick your headband is. (Just like you wouldn't wear shoes without socks, you wear a washable headband under a leather hat to catch sweat - soldiers do the same thing and wear a washable headband under the helmet)
I have one more hat listed here, same to double XL size, brown leather, made by Barmah Australia, "adventurer" or "outback" Crocodile Dundee style (sorry, no actual crocodile teeth hat band).
If you buy both of them, the price for 2 hats is $96, that means 20% discount offer for buying both hats from my Craigslist listings ($48 per one hat, discount included).
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If you are looking for an investment piece like a $400 custom Stetson beaver-felt fedora, Henschel isn't that brand. But if you want a highly durable, North American-made outdoor, leather hat that will withstand years of abuse, scorching sun, Vancouver rain, all for for under $150 (new), Henschel is widely considered one of the best values on the market.