Love the hat, very comfortable
Love the hat, very comfortable. I originally measured my head size at 7 3/8" and purchased that size. The hat was snug but not uncomfortably tight, I still have it and wear it on windy days. I then purchased a second hat this time 7 1/2" which fits me probably more as Tilley intended the hat to fit. Both hats get equal time, but if I were pressed to pick just one I'd probably pick the 7 1/2 you forget its on your head. My advice, measure your head and go up one size to get the "Tilley fit".