What Our Gearhead(R) Experts Are Saying:"I started using the PR Leg Sleeves on race days and instantly felt the difference in airflow. They go on easy, stay put thanks to the elastic band, and give just enough compression without feeling restrictive. It's a small change that adds up to real watts saved."When we're chasing podiums or looking to edge out a PR, every detail matters. That's why we turn to the Castelli PR Leg Sleeves. Co-developed with world champion triathlete Laura Philipp, these sleeves are built to cut aerodynamic drag and keep us dialed through the bike leg. The snug fit is aided by a rear stretch panel that makes slipping them on a breeze, while the wide elastic band up top ensures they stay locked in place-even in an aggressive tuck. Lightweight, sleek, and purpose-built, the PR Leg Sleeves deliver tangible aero gains without adding bulk.