Castelli team sky free aero race bibshortteam sky will be the only worldtour outfit wearing castelli clothing such as these free aero race bibshorts and will race train eat and sleep well maybe not the last 2 in the brands kit these free aero race bibshorts have been engineered as castellis premier race shorts the first free aero race bibshorts made their debut back in 2007 and have undergone constant improvements as castelli develop new fabrics manufacture methods and respond to feedbac