Some custom race is female-only; they do not have proper male body texture(either vanilla or body replacer).
Truth be told, I personally have never seen any male custom race besides that Altair, although that Altair looks quite good, and he has a set of clothings to start :celebration:
However, since people will use body replacers anyway, I think the only good thing from a custom race is a true smooth and non-vanilla face, and since smooth face is female thing... well...
@Omber1: try Robert's Male Body Replacer. Actually, that's the only male body replacer I've heard... or remember. Anyway, that's as far as I can go