Alpha Collection

Top-rated winter jacket, bringing warmth, breathability, and a high level of rain protection along with a soft, comfortable fit. This jacket leads the way in demonstrating how a winter jacket should perform.

Castelli's best jacket for mild conditions. This lightweight, super-breathable, and extremely fast jacket is great for high-intensity rides or staying at the right temperature in cool conditions. Alpha construction with membraneless outer layer and Polartec® Alpha inner insulation.