Race fit total warmthusing an ergonomic bodyfit pro race fit but with a touch of extra space for winter you39ll easily be able to layer up to suit any winter temperature but without excessive fabric to flap and sap your energy gore174 windstopper174 4 way warm fabric blocks wind and has a soft fleece back trapping warm air to prevent overheating sportful have added highly breathable tdtxp fabric under the rear pockets to allow excess moisture to escape a full length zip allows for