Since 1876, Castelli has been the tailor for the cycling champions. Our riders have worn the world champion rainbow stripes, the Tour de France’s yellow, polka-dot and green jerseys and taken home all three of the grand tours, the classics, six days, you name it.
The Free Aero Race 4 Bibshort is our top race short, which also means that it’s insanely comfortable even if you never pin on a number. Every single fabric, component, stitch and construction method has been updated and improved over time. Eight-hour rides are no problem. Engineered for aerodynamics and WorldTour racing performance.
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COMFORT THAT LASTSThe Free Aero Race 4 Bibshort features the updated Progetto X2 Air Seamless pro-level seat pad for maximum comfort. New seamless skin-care layer is softer against the skin and reduces abrasion and chafing. Separate saddle-shaped cushioning layer with high-density foam and gel inserts provides all-day comfort. |
PERFORMANCE FITThe Forza fabric on the inner leg features 38% Lycra content for perfect fit, and is held in place by the latest iteration of Castelli’s seamless flat Giro leg gripper elastic for better grip distributed over larger area. |
BREATHABLE AND AERODYNAMICStripe mesh engineered minimalist bib construction keeps you cool, offering moisture-wicking properties, while Vortex dimpled fabric on legs provide aero performance. |
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| Free Aero Race 4 Bibshort | Free Aero Race 4 Short | Endurance 3 Bibshort | Competizione Bibshort | Entrata Bibshort | Endurance 3 Short | |
| Features | Premium fabrics and fit | Premium fabrics and fit | Optimum muscle support | Outstanding fabric stretch | Reflective panels on leg | Optimum muscle support |
| Seat Pad | Progetto X2 Air Seamless | Progetto X2 Air Seamless | Progetto X2 Air Seamless | KISS Air 2 | KISS Air 2 | Progetto X2 Air Seamless |
| Weight | 212 g | 172 g | 181 g | 173 g | 175 g | 181g |
