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Item # CST2675
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Castelli Kask Aero Race Bib Shorts $0.00
While every pair of bib shorts have to start at the same level, not every pair have to end at the same point. Not surprisingly, the same principle is shared with the Tour-winning Kask helmets. That's why it's only fitting that both prime examples are represented with the Castelli Kask Aero Race Bib Shorts. Castelli knows that one doesn't create a top-voted pair of bib shorts by simply stitching some Lycra together and calling it a day. Instead, the Free Aero Race bib shorts have been tweaked since 2007 and they've also been pro-team-tested for four straight years. Believe us, the result shines through -- blindingly.
For the construction, this iteration uses three different forms of Lycra, each at strategic points throughout the bib shorts. Starting at the side, front, and rear panels, Castelli placed its Shield Micro fabric. This form of LycraPower has a horizontal stretch with a responsive return. What does this mean? Simply put, the material is capable of stretching in order to match your movements. However, when your leg returns to the un-flexed position, the fabric immediately returns to position. This provides a constant support to the hamstrings and glutes, resulting in more compression, and thus less detriment from road vibration. The fabric's open weave design also aids in cooling the skin, but when coupled with a high wicking ability, it pulls and evaporates moisture at an alarming rate. Additionally, Castelli gave the material a ribbed knit surface to aid in aerodynamic air flow over the legs.
For durability, Castelli placed its Action Micro fabric at the saddle contact point. As its name suggests, this material is ready for action, just not at the expense of comfort. Made from a 210 gram microdenier PowerLycra, Action is extremely abrasion resistant on the exterior, yet it offers a soft, second-skin feel on the interior. All together, the fabric selection directly results in the Free Aero Race's feathery, 195 gram weight.
And while having some of the best materials in the world at your disposal is a good start, Castelli knows that the true quality of bib shorts lies in the fit. That's why the Free Aero Race features a minimally seamed construction. In fact, there are no seams used on the inner leg at all. The legs use Castelli's compliant, barely-there Giro3 grippers. For the uppers, Castelli continued with the ever-evolving Free bib straps. These uppers cover a minimal amount of surface area as to avoid and prevent any contribution to heat under the jersey. By combining all of these design features, Castelli ensures a supportive fit that is completely free from even the thought abrasion or discomfort.
Being a top-shelf pair of bib shorts, it's only fitting that Castelli gave the Free Aero Race its most innovative chamois, the Progetto X2. The Progetto's surface uses a skin-care layer comprised of a seamless bacteriostatic fabric that conforms to the body without folding. The material supports airflow, and aids in evaporation. The second layer is multi-density foam with variable thickness paced where you need it, not where you don't. The comfort level is also aided by Castelli's Viscous comfort inserts; a perforated padding added to the highly-sensitive ishial and perineum pressure regions.
The Castelli Kask Aero Race Bib Shorts are available in the color Black and in the sizes Medium, Large, and X-Large.