Thanks for the reply. Had them shipped internationally from Endless so returning them and getting a new pair will be about $70. Hmm The 10.5Cs might be a touch too long, but I don't think the 10Ds could be. My feet both measure almost exactly 11" (right foot slightly shorter). I can already feel the 10D rubbing my little toe a tiny bit, I think a smaller size would crush it (as might a 10C...).