The Castelli R-A/D Short Sleeve Jersey in Multicolour Violet is designed for optimal performance during high-speed rides, with CFD-based fabric placement and Air_O Stretch fabric for breathability and comfort. Engineered for aero efficiency at speeds of 30 to 55 km/h, this jersey features airflow shoulder construction and elbow-length sleeves with a raw-cut edge for a sleek fit. The YKK Vislon zipper ensures durability, while the elastic waist keeps the jersey in place and supports the pockets. Made with bluesign certified fabrics, this jersey is both high-performing and environmentally friendly.