Jerseys/Tops (Short Sleeve)

The first aero jersey project was called Split Second When Castelli engineered the first aero jersey for road racing back in 2006, everyone thought we were crazy. Back then, aero was only for TTS. Performance clothing meant moisture management. And you could win the Tour de France with a baggy jersey that was little more than a polyester t-shirt. Even our aerodynamic consultants expected limited gains, so we named the jersey split second, though, like now, we thought even small gains were worth pursuing. In the end the gains were pretty substantial, and we completely revolutionized the look of the pro peloton. We're now on the sixth major revision of our aero jersey. Each generation has become more aero and better fitting. The aero race 6. 0 benefits heavily from CFD analysis of wake flow in the riding position for fabric and seam placement. It also benefits from pro riders' feedback, as we've worked to make the jersey comfortable for their long hours of training and then racing in every possible weather condition. Version 6.0 is our most aero and most comfortable aero race jersey yet. But we're already at work on 6.1. . . - CFD-based fabric placement and seam construction - Engineered for aero efficiency at 30 to 55 km/h - Airflow shoulder construction - Velocity Rev2 fabric on front and sleeve - 3D mesh back for breathability

A cycling jersey needs to look great as well as perform. The Marmo Jersey has a stunning oil in water" graphic while still offering the performance you expect from a Castelli jersey." - ProSecco Micromesh body fabric to keep you dry - Mesh side panels for breathability - Velocity Rev2 fabric on sleeves with close-to-body fit and raw-cut edges - Covered YKK® Vislon® zipper - Drop tail with 3 rear pockets with reflective piping

- Microfiber 100% polyester fabric - Ykk vislon full-length zipper - Sublimation-printed graphic - Silicone elastic at waist

The exclusive River City Bicycles Competizione 2 Acrostic Jersey spells out comfort and quality at a great price. Featuring ventilated Strada micro-mesh to wick sweat and manage your body temperature, plus dimpled Tailwind stretch fabric on the shoulders, side panels and pockets and sides for a perfect pro-level fit and streamlined performance. Other key features include an easy-to-use YKK® full-length front zipper for quick cooldowns and a silicone waist gripper that stops the jersey from riding up so that you can give your full focus to the roads ahead. Matching bib and long sleeve jersey also available.

The exclusive River City Bicycles Competizione 2 Acrostic Jersey spells out comfort and quality at a great price. Featuring ventilated Strada micro-mesh to wick sweat and manage your body temperature, plus dimpled Tailwind stretch fabric on the shoulders, side panels and pockets and sides for a perfect pro-level fit and streamlined performance. Other key features include an easy-to-use YKK® full-length front zipper for quick cooldowns and a silicone waist gripper that stops the jersey from riding up so that you can give your full focus to the roads ahead. Matching bib and short sleeve jersey also available.