Aero arm sleeves built for road racing. These are the same rib pattern seen running down the arms of Castelli's pro riders — raised aero trip strips that disturb airflow to make your Aero jersey or San Remo speedsuit measurably faster.
- Aero trip ribbing for a genuine aerodynamic gain
- Designed to pair with Castelli's Aero jerseys and San Remo speedsuits
- Short-sleeve coverage from wrist to shoulder
- Race fit


