The 2XL was too large for me, and the item that arrived was not as depicted. It looked more like a fishing hat than the floppy hat depicted in the pic (received hat had grommets/snaps on the side and a chin strap). Additionally, when I tried to size down and order the XL size, for some reason the "one size" hat kept appearing in my cart (rather than a simple indication that the XL was unavailable). If I hadn't checked my cart carefully I would have ended up with a too-small "one size" hat.

Three stars because the hat that I got in the mail was a nice and well-constructed hat and I might have considered keeping it if it fit. My giant head is 24" in circumference if that helps any of my big headed brethren with sizing considerations.