Castelli Alpha RoS 2 Light Cycling Jacket - Black

What Makes the Alpha RoS 2 the Right Lightweight Jacket?

The Castelli Alpha RoS 2 Light Cycling Jacket is built for riders who want serious weather protection in a package light enough that wearing it never feels like a compromise. Its Alpha RoS 2 fabric provides waterproof and wind-blocking performance with a breathability level that handles hard efforts without the overheating that plagues heavier waterproof jackets. The clean black colorway keeps it universally compatible with any kit combination, and the light construction folds down small enough to carry on rides where you are not sure if the weather will hold. A jacket that earns consistent use rather than sitting in the closet until conditions get extreme.

Laser-cut hem bonding reduces bulk and eliminates the seam volume typical of heavier outerwear, and the athletic cycling fit delivers clean performance from the drops without a jacket that flaps or bunches at speed. The full-length front zipper allows quick ventilation management, and rear pockets remain accessible from a riding position. Packable enough to carry on every ride as insurance, capable enough to be the only jacket you need on wet-weather days.