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Castelli Free Aero Race Bib Shorts

The Free Aero Race bib shorts are widely considered one of the best performance bibs you can purchase these days. In fact, they've been one of the best bibs you could buy since they were introduced a couple of years back. Small but notable refinements through the seasons have kept them at the top of their game. Once in a while you hit a home run right out of the gate and that's what Castelli did with the Free Aero Race. You could consider them a new classic.

The body of the bibs are constructed from three main panels. Castelli's Action Micro fabric adorns the saddle contact areas for durability and reduced friction. It also makes sure the garment will last and not wear prematurely. Proprietary Energia Micro fabric is used on the sides and back to provide what Castelli calls stretch and return. Meaning, it allows for the fabric to expand and contract during the pedaling motion. It provides excellent muscle compression and support without being too restrictive. Important to note, this Energia Micro panel wraps around and is stitched to surrounding panels on the outside of the garment, so there is no inner leg seam to rub and cause friction while pedaling. The third fabric is called Breathe Micro fabric and it is used as a front panel to provide wicking and breathability. It also helps explain why these bibs perform so well in warm conditions. The leg grippers are Castelli's proven Giro++ design and give a natural feeling extension and termination of the garment on your thighs. The Giro++ gripper manages to stay attached to your thigh without binding or applying too much pressure.

The upper section of the Free Aero race bib changed the way bib suspenders are now constructed on most high end bibs. The front upper section is wide and open in the front of your body, void of any excess material leaving you with maximum ventilation by simply having no material present. This open and free design is where The Free Aero Race bibs received part of it's namesake.

These bibs are finished off with the amazing Progetto X2 insert. This elastic insert features a two piece construction. The first piece is the base. This is the working part of the chamois which has three gel areas that are located at your sit bones and soft tissue areas and is sculpted for an anatomic fit. The second is a skin care layer that is bacteriostatic, soft and seamless to prevent chafing. When you combine these two parts into one unified chamois, you get one of the best cycling inserts ever produced. Due to the construction of the insert, you can pin the chamois into the bibs prior to stitching for a perfect, non-wrinkled fit.


  • Durable Action Micro fabric
  • Elastic Energia Micro fabric
  • Breathable and wicking Breathe Micro fabric
  • Giro++ leg grippers
  • Free style bib suspenders
  • Progetto X2 Air 2 piece insert
  • Great style cues
  • Anatomically cut pattern fit
  • Low volume
  • Racer's choice

With several Free Aero Race bib models to choose from, these are the classic and ever popular all black version.

Item #: 842270
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