Originally Posted by
genejockey
Seems odd to me that sizing for bibs is generally based on a single measurement - waist circumference - when there are at least 3 important parameters - waist, yes. But also torso length and leg length. I have worn Louis Garneau XL bibs for years. Last year I lost about 30#, so I bought some of the same model in L, and while they fit in the waist and hold everything in place, the straps are just a tad tight, and they are about 2" shorter in the leg.
Some go off hip and waist circumference like Assos and Rapha. I guess their shoulder straps are stretchy enough to cope with varying heights. I find hip measurement is more important than waist for bibs. Some also offer different leg length options in the same size.