Castelli Men's Competizione Bibshort (US, Alpha, Large, Regular, Twilight Blue)

The KISS Air2 seat pad is designed for all-day comfort, featuring the softest-ever fabric next to your skin for immediate and long-lasting comfort. Engineered seamlessly to reduce chafing and abrasion, the pad's stretchy material moves with you. Dual-density, infinitely variable thickness provides perfect cushioning in every part of the pad, with maximum thickness and density in the ischial zone, tapering to moderate thickness under the perineum and minimum thickness at the perimeter.

Internally, the pad features Affinity Pro Lycra fabric for outstanding stretch and rebound, while the exterior Vortex BLC textured fabric on the legs enhances aerodynamics. The Giro4 leg gripper with raw edge ensures comfort, and silicone stripes provide secure grip. Flat-lock stitching and reflective detailing on the back complete the design.

When comparing KISS Air2-equipped bibshorts, the Competizione model offers outstanding fabric stretch, optimum muscle support, and ultra abrasion/tear resistance, with reflective panels on the legs and high-compression fabrics. The Endurance 3 bibshorts feature the same KISS Air2 seat pad but with a different overall design, while the Unlimited Cargo adds storage pockets. The Entrata and Free Aero RC Pro bibshorts also utilize the KISS Air2 pad, each with their unique feature sets.

Customer reviews for these bibshorts are generally positive, with the Competizione and Endurance 3 models receiving 4.1 and 4.4 out of 5 stars, respectively, from hundreds of customer ratings. The Unlimited Cargo bibshorts have a 2.8 out of 5 star rating, while the Entrata and Free Aero RC Pro have 5.0 out of 5 stars, though with fewer reviews.

In terms of product details, the Competizione bibshorts weigh 180 grams and are suitable for temperatures between 15°C and 35°C (59°F to 95°F). The Endurance 3 weighs 214 grams and has the same temperature range, while the Unlimited Cargo is slightly heavier at 231 grams and suitable for 15°C to 32°C (59°F to 90°F). The Entrata and Free Aero RC Pro weigh 201 grams and 222 grams, respectively, with a 15°C to 35°C (59°F to 95°F) temperature range.

All of the bibshorts feature a tailored fit, with the Free Aero RC Pro having a race-specific cut. The Progetto X2 Air Seamless pad is used in the Endurance 3 and Free Aero RC Pro models, while the KISS Air2 pad is found in the Competizione, Unlimited Cargo, Entrata, and Espresso bibshorts.

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