I was originally expecting to write a review just like magp416423's ("Very slick"), but he beat me to the punch and stole most of what I was going to say.
I'm 5'6", 125 lbs and the small fit great. The silicone grippers at the leg openings didn't feel intrusive and held the legs in place rather well.
The reason I give this four stars is the presence of the large "PANTHER" across the lower back of the bib -- it's typically covered up but it still is a little bold (and odd, in my opinion). As a bib and not a fashion statement, there seems to be little to complain about.
Ignore the two books below the bib... just picked them up and was laughing my way through them!