This is the same Aero Race Jersey that wins races with the Cervlo TestTeamthe fastest jersey in the peloton. Only the colors have changed. Two thirds of aerodynamic resistance is created by the rider, so even the smallest gains here can make a big difference. In wind tunnel testing, the Aero Race saved 10 watts when riding on the hoods at 40kmh 25mph. That translates into 40 seconds saved every hour compared to a standard jersey. So either you can ride faster or with less effortyour call.Aero technology saves 10 watts at 40kmh compared to a normal race fit jersey. Velocity fabric front and shoulder with prosecco treatment keeps you dry.