Bolero Aero Sleeve |Castelli|Soudal Quick-Step UNO-X24 while the breathable thermal fabric

while the breathable thermal fabric keeps your legs warm and dry

Built with exclusive

water-resistant panels and thermal comfort built in

The snap-in hinges will pop out under impact

Originally $370 – secure yours at a fraction of that price

Bolero Aero Sleeve |Castelli|Soudal Quick-Step UNO-X24 while the breathable thermal fabricCastelli 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