In reply to krasavenko:
> (In reply to Ed Feldman) Men's are quite a bit bigger I found and so is the lace version. My Vapor V's are 37, comparable Katana/Muira lace size would be 36 in my opinion. UK4.5 in 5.10 mostly (but never actuall buy 5.10 myself, just tried them on)
I second the part with the one Size down from La SPortivas and also that the Vapor Lace Up comes a half size bigger.
But i never noticed a difference in size (lenght wise) between Vapor V Men and Women. The Wmn version is a slight bit slimmer in the forefoot and has a shallower heelcup. But they both fit me well in the same size.