Quote Originally Posted by SadieKate
Sidi Genius 4 (women's) - love them because they fit my somewhat narrow foot with it's incredibly high instep.

Sidi's run small. All brands are weirdly sized so you need to try on any and all shoes. Note that Sidi has half sizes that are sometimes not stocked.
I wear the same ones, plus you can get the 04's on sale right now, I think. I do have a half size and they're very comfortable.