Bolero Aero Sleeve |Castelli|Soudal Quick-Step UNO-X24 this vest is designed to

this vest is designed to be packed away into your jersey pocket when the sun comes out

The snap-in hinges will pop out under impact

Built with exclusive

This is pure speed equipment

while the trailing edge helps guide airflow away from the shoulders

Bolero Aero Sleeve |Castelli|Soudal Quick-Step UNO-X24 this vest is designed toCastelli Bolero Aero Sleeves The Castelli Bolero Aero Sleeves are designed to deliver measurable aerodynamic gains for time trials and high speed racing. Often seen on professional riders in major races, these sleeves are engineered to reduce drag and improve efficiency when every watt counts. The distinctive ribbed fabric creates aerodynamic trip strips that help manage airflow around the arms, smoothing turbulence and improving aerodynamic