I've been a fedora wearer for decades, and always liked the look of the brown one as worn in the Indian Jones films with a slightly wider than usual brim. I ordered using the guide provided on the side and got a M, because it "claimed" it would fit 7, 7 1/4, and even 7 3/8.  I'm a 7 1/4- 3/8, so I got that. It was so hard and tight on my head I couldn't get it below the top of my skull. Since I liked the hat, I returned this one, and ordered the Large--believe it or not, it was still a little snug, but I figure in a short enough time it will soften and fit much better. It is a very nice looking hat, but two things notched it down 2 stars. The first was obviously because the size scale is going to lead a lot of buyers into purchasing hats that are too small for them. The second was because it is NOT a "soft" hat. On my head it felt like I was putting a hat on with a metal rim--very inflexible and hard--it DOES say 100% wool, so I'm imagining that it's the newness that makes it hard--it still fits a lot better and gets a lot of complimentary looks. I do like it! And yes, I'd recommend any fans of the fedora who want a stylish looking brown one with a good brim, to get this one--just be prepared to "break it in" like a good baseball glove. I'm not crazy about the "Indiana Jones" tag on the side because it's a bit gauche and unnecessary--the hat can sell itself and you can't hardly read the metal pin from any distance in the first place. They could've left the IJ name on the inside crown of the hat and left that silly pin on the ribbon off altogether--it weighs down against the ribbon and opens a bit of a loop there. I may decide to just remove it altogether. Now all that was to explain the 3 star rating in a plethora of 5.  I like the hat--a lot; but I can't honestly give it 5 with the above cited pitfalls.