Does any one here have a Chinese crested or other hairless breed

?
I'm fostering one, its started to get cold outside and I dont know what kind of clothes I can put him in, he's allergic to whool, what should I use?
And whats the best way to shave him ? I have normal dog clippers, I shaved him with a 10# blade but he still has some hair on his naked body (he's a true hairless but gets a few hairs here and there).
And also, whats the best harnesses to use on these dogs that are really soft

?