The castelli gabba 2 long sleeve windrain jersey is phenomenal because it keeps out the elements while offering excellent breathability and great stretch for a perfect fit the long sleeved version is light like a jersey yet protects like a jacket its deceptively warm yet doesnt overheat in moderate conditions and if you get rained on you get the bonus of gabba protection castelli have updated it for winter 2014 with all the upgrades to the standard gabba plus improved placing of the zip