I have the kenya in a small. I could have worn the XS, but it was super duper tight when zipped up. It is lambskin, so you have to be careful because too much stress on the leather trying to squeeze yourself into it, is not good. It looks better done up halfway with the collar and zippered flaps open. it looks ok when all the way open (the xs looked better open, but not done up). I hear mixed reviews on mackage leather stretching. also, be careful, i got a few minor scratches in my jacket from the heavy paper mackage label before i removed the bloody thing!