"What Our Gearhead® Experts Are Saying:""This bib is fast—like, actually fast. I felt the difference right away in both fit and fabric. The compressive feel is dialed, and the minimalist bib straps basically disappear once you’re riding. The chamois is unbeatable for long race days, and the leg grippers don’t move an inch.""We wear the Free Aero Race S Kit Bibshort when speed is non-negotiable and comfort can’t be compromised. Castelli combined years of pro-level testing with aerodynamic tech to create a race-day bib that moves fast and feels great. Forza2 Stretch fabric delivers a compressive, aero-hug fit, while lightweight mesh bib straps disappear under a jersey. The Progetto X2 Air Seamless seat pad brings long-ride support without friction or bulk, and raw-cut leg endings with silicone grippers stay locked in place through sprints, climbs, and all-out efforts. A zippered rear pocket adds smart storage, and the short's finish is rated UPF 50+ to protect during long, sun-drenched stages. When it’s time to race, this is the bib we trust to perform."