If they would be in local store... :( When I was looking for helmet I tried something like 15 brands. Somehow very few fit my head (only 2 out of those 15, and all very expensive $300+ I tried for interest felt just horribly)... :)
No, I'd stay away from online hats (as well as for boots - same issue - never can fit them). I ended up with Troxel Orion. It's comfy, but just doesn't look western. I'm sure people at the show gonna roll when I'll show up! :P
It's a nice one you could find on-line. If it would be somewhere around (even with some further drive), I'd try for sure.