I'm 5'4" and not skinny, but not fat either, just a little on the more solid side. I've been wearing the standard large bibs, but the leg openings were just a little floppy, and reaching just above my knees. The short inseam ultimates fit perfectly! They grip my legs right where they're supposed to. The ultimate padding makes a difference too. So far I've been wearing them this winter with unpadded pull-over tights, but looking forward to the warmer weather, wearing these for my longer rides.