First off, **THESE HATS RUN LARGE** so whatever size you think you are, get the 2 sizes down. I wear a 7-3/8 verging on a 7-1/2 (aka Large), so that's what I ordered. It turns out that the company actually sizes these hats as S, M, L so the measurements you select from on the Amazon page are pretty much meaningless. The 7-3/8 hat I got was entirely too large (marked Size L, actual size more like XL) and I ended up having to return it. I was pretty impressed by the hat's overall quality so I took a chance and ordered a size 7-1/8, which would be far too small for me in real life. The hat that arrived has a tag showing "Size M" but it's a lot closer to a Large so it ended up fitting perfectly.
As others have noted, the hat is very stiff but for me that's a selling point as I don't want the brim to droop. The 2nd hat I got fit a little tight, but I boiled some water in a kettle and used the steam to shape it to fit my head perfectly (if you do this remember to take the hat bands off or there could be some color transfer). I also used the steam to re-shape the crease a little bit to give it less of a Fedora feel and more of a Western style.
Be aware the hat band is stitched on so you'll need to cut a couple of threads if you want to replace it. The dark color on the brim is also painted on, not a stitched on ribbon which would be a little more traditional, but I actually like the look of it.
If it sounds like I'm only hitting negatives I assure you I'm not- GET THIS HAT. The brim is wide and strong, the felt is very responsive to just a little bit of steaming, and overall this is an outstanding base if you're looking for a hat to truly make your own.
The lining is top-notch (I have no idea why they don't do a better job of showing that detail in the pictures) and the brim is fairly wide, so be ready and willing to rock that. I usually shy away from wool felt but I really feel like this hat is worth the money. All around good purchase, and I'll probably get one in another color soon.