Hmm, that's interesting. My BF is shoe shopping right now. He wears Nike cycling shoes in a 43 I think. He has tried Specialized, Northwave, and Sidi lately. He said he's the same size in both Sidi and Specialized (or so he thinks--he tried on a 44 Sidi which was too big, but that's all they had at the one store). Northwaves definitely run large. I know everyone has told me to order up a size in Sidis, but at least my BF disagrees. I want to find a shop with a good selection so I can test out the theory too.

I'm also wondering if the Sidi toe box is big enough for me. I like the narrow heel concept and the adjustable heel cup thing on the $$$ ones.