The sizing equation we have up is how most guys have sized. I'm a true US 9 and went with the 41.5, which is what we call a 9.
For reference I wear a UK8 in laced Carmina shoes.
Ah, sorry about that. We were short shipped an entire box and only got a pair or two of that size. We sold a few pairs the day they arrived and a guy actually bought a couple of pairs.
That said, we have another production run in the works already and I think the balance of our first run should be with them.