What are the sizes like on these, iam 10 in most shoes, but 11 in others what would you go for?

Im generally a standard 9 but I had to go for 9.5 in the FiveTens – they were just a tad tight in the 9

Brilliant piece of footwear!

they seem to size the same as shimano; impact lows fit me in the same size as MP66's and I'm not the only one

http://www.singletrackworld.com/forum/topic/510-sizing

To me, the rubber toe box makes them feel a fraction smaller when new.

However, the insole packs down and the upper stretches after a while and they start to bag out.

I'm at the top end of a ten in most stuff and go for a 10 in Five Tens.

Hope that's of use, and possibly this:
http://www.gravity-slaves.co.uk/forum/index.php?topic=6396.0

I'm a size 11, I bought size 11 and they fitted. How bonkers is that?