It39s the new normal when castelli first introduced the aero jersey to the pro peloton in 2007 it was seen as something completely radical by 2009 all the pro teams were jumping on the bandwagon and in the following years the aero revolution steadily spread to more and more cyclists this is a womens fit version of castelli39s full worldtour level aero race jersey the fastest jersey they39ve ever tested but it isn39t limited to just racing it has a full length front zipper for