I'm 6'1", 175 with a 32" waist and couldn't decide what size to get, so I bought the mediums and larges. Mediums fit perfect in the waist with a base layer, but are a little short for my liking. Larges are good length wise, but a little big in the waist and a little baggy for me. Thankfully these babies have the velcro waist straps and a double button waist, so if I do decide to take the bibs off, I'll be able to tighten down the waist enough so they won't be hanging off my butt. Long story short, decided to go with the larges. I think this will end up being the right decision.