Castelli R-a/d Short Sleeve Jersey. Unleash your speed and comfort with the Castelli R-A/D Short Sleeve Jersey. Engineered for aerodynamic efficiency between 30-55 km/h, its CFD-designed construction and Air_O Stretch fabric slash drag while actively wicking sweat for all-day comfort. Featuring an Airflow shoulder design, raw-cut sleeves, and a full-length YKK® Vislon® zipper, this jersey offers a second-skin fit that stays put thanks to its supportive elastic waist. Ideal for road, gravel, or MTB, it provides tangible watt savings and excellent breathability, with reflective accents for added visibility. Castelli R-A/D Short Sleeve Jersey | Men´s Aerodynamic Cycling JerseyClass-leading aerodynamics paired with all-day comfort.Experience the pinnacle of cycling performance with the Castelli R-A/D Short Sleeve Jersey, a garment meticulously engineered for cyclists who refuse to compromise between speed and comfort. This jersey is the culmination of intensive research and development, designed to give you a tangible edge whether you´re racing against the clock, tackling a long-distance sportive, or pushing your limits on your favorite training loop. It's engineered to save you watts while managing moisture and providing sublime comfort for the longest rides.Born from extensive research and Computational Fluid Dynamics (CFD) analysis, the R-A/D jersey is your secret weapon against the wind. Every seam, panel, and fabric is strategically placed to optimize airflow and reduce drag, delivering measurable watt savings when you´re pushing the pace between 30 and 55 km/h. The innovative Airflow shoulder construction and elbow-length stretch sleeves with a raw-cut edge create a smooth, uninterrupted surface, slicing through the air with maximum efficiency.Aerodynamics mean nothing without comfort. Castelli understands this, which is why the R-A/D features the incredible Air_O Stretch fabric. This material not only provides a close, second-skin fit for optimal aero performance but also excels in moisture management and breathability. It actively wicks sweat away from your skin, keeping you cool, dry, and comfortable, from the first pedal stroke to the last mile of an epic all-day adventure. For an extra aero advantage, pair it with the Bolero SS base layer, or wear it alone on the hottest days for supreme ventilation.Practical details elevate the R-A/D from a race jersey to a versatile everyday favorite. The full-length YKK® Vislon® zipper provides effortless, one-handed ventilation control, while a secure elastic at the waist prevents the jersey from riding up, even when the pockets are fully loaded and supported. Its exceptional performance characteristics make it the ideal choice for high-speed Road Cycling, demanding Gravel adventures, and even fast-paced MTB cross-country rides. Reflective accents are integrated to enhance your visibility in low-light conditions, adding a crucial layer of safety.FEATURES:- CFD-based fabric placement and seam construction- Castelli engineered Air_O Strecth fabric for breathabiity, comfort and stretch- Engineered for aero efficiency at 30 to 55 km/h- To be paired with Bolero SS base layer for added aero gains, or without base layer for hot days- Airflow shoulder construction- Elbow-length stretch sleeves with raw-cut edge- Elastic around waist to keep jersey in place and support pockets- YKK® Vislon® zipper- Contains bluesign® certified fabrics.Technical Specifications* Gender: Men* Fit: Stretch, Round* Primary Disciplines: Road Cycling, Gravel cycling, MTB Cycling* Material Type: Synthetic* Key Features: Reflective accents, UV Protection. tradeinn Bikeinn