I've decided that a set a bibs would be helpful to my cause. I tried searching the forums but as usual I'm unable to get any useful information. My question is pretty simple though, when ordering a pair of bibs does one buy by his waist measurement or his chest measurement? For me this would be the difference between a large by waist and a XXL by chest. Do you order them a size smaller like you would for a blast shirt or a squat suit, or do you just order the size your measured for?