Ok so I've narrowed my search down to these two helmets:
IRH XR9 Helmet - ASTM/SEI Certified Helmets from SmartPak Equine
Charles Owen GR8:
Charles Owen GR8 Helmet - ASTM/SEI Certified Helmets from SmartPak Equine
Now the tack shops around here don't carry the IRH that I want, but they do carry the Charles Owen. I tried it on and found that it was a bit tight in the size 7 1/8" (when I had my hair tucked up under it) but the 7 1/4" seemed too wide on the sides (I think I have a really oval shaped head or something!)
Right now, I own this helmet, in a size 7. I can't put my hair up in it though, so I know I'll need one slightly bigger if I want to do that (which I do!)
IRH Olympian Velvet Helmet - ASTM/SEI Certified Helmets from SmartPak Equine
Anyway, I want to try out the IRH XR9 but that means ordering it from online and then having to ship it back if it doesn't fit the way I want it to. Much more of a pain than just being able to try it on in the store! So I'm trying to get as close to the right size as possible. Does anyone have any experience with the above helmets and do any of them run the same or at least really similar?