Really? I've never heard this, and I've come across a bunch of threads about variations in (Euro) sizes across different brands. A lot of people say Sidi boots tend to run small, like in this thread:
So I was just wondering what the word is on the Pumas. Was hoping to hear from some inmates around here with some experience with these boots. Guess I'll just take a chance on the 47s and return them if they don't fit.