CASTELLI FREE AERO RC BIB SHORT BLACKFREE AERO RC BIBSHORT BLACK The Free Aero RC Bibshort is our top race short, which also means that it's insanely comfortable even if you never pin on a number. It's fair to say that we've been working on this short for the past 15 years. That's how long it's been since the original Free Aero Race Bibshort was first introduced, initially as our top of the line race short. Since then it has won three Tours de France, three Giri d'Italia, one Vuelta and