The Castelli Do.Di.Ci. Jacket is engineered as the ultimate solution for high-intensity rides in cool conditions, bridging the gap between a lightweight jersey and a protective jacket. Its defining feature is Castelli’s exclusive Ristretto technology, developed in partnership with ITTTAI®, which delivers 12 times the breathability of the original Gabba while remaining mostly windproof. Unlike the Gabba, which was created for racing in wet weather and therefore compromised breathability in favor of water resistance, the Do.Di.Ci. is optimized for dry conditions where airflow management is key. Engineered air permeability allows just enough air to enter to accelerate moisture evaporation, ensuring you stay drier and more comfortable when working hard. Think of it as the difference between drying your bibshorts in a damp room versus hanging them in a light breeze—the Do.Di.Ci. makes every ride feel faster, fresher, and better controlled.

Despite its featherweight 212 g construction, the Do.Di.Ci. delivers performance-driven details for race-day efficiency and everyday training alike. A close-to-body stretch race fit eliminates bulk without feeling restrictive, while minimalist paneling enhances comfort and speed. The jacket features a YKK® Vislon® zipper for smooth operation, three rear pockets for storage, and reflective piping for added visibility. Temperature-rated for 8°C to 15°C (46°F–59°F), it’s ideal for spring and fall rides when a thermal jersey is too light but a traditional jacket is too warm. Available in both short- and long-sleeve versions, the Do.Di.Ci. is best paired with a lightweight rain shell if precipitation is in the forecast, but on dry days it redefines performance layering with unmatched breathability, stretch, and speed.