Bolero Base Layer

Castelli Bolero Short Sleeve Introducing the Castelli Bolero Short Sleeve designed to boost your aerodynamic performance. Castelli's Aero sleeves, designed for use with the Aero 7 Jersey and San Remo BTW Speedsuit to maximize aero gains. Inspired by the trip lines seen on the arms of our pro riders during time trials, these Bolero sleeves feature aerodynamic ribs that create trip strips, enhancing the speed of our Aero Jerseys and San Remo Speedsuits even further.