Things have to fit... and buying online you don't get to try things on, and an XL from one manufacturer might fit like a Small from another.
Let's see if we can make this easy, so you can order with confidence and avoid returns and exchanges (not that we mind exchanges or returns, like I said almost two sentences ago, things have to fit)
Hats- our beanies and knit hats are pretty much "one size fits most", we design them with enough flex and stretch to fit most anyone, and I have yet to see a head that our standard bison beanie doesn't fit well and look great
(the exception to this being our polar-fleece lined beanie, those are slightly smaller and snugger than the others)