I'm 5'11", 13st 4lb and the xl fits perfectly. Enough room to fit a base layer or two, yet still a sleak fit. It comes quite low on the bottom which for me is good length. The only issue I have is with the elasticated rear pockets. I find it difficult to get my stuff in and out of them, plus my mobile comes out wet with sweat on every ride....there is no ventilation.

Very happy with this range of reflective bike clothing. I ordered two and returned one that was not my size. Very efficiently dealt with will order again.