The Castelli Women's Alpha ROS 2 Light Jacket has been created for those days on the bike where you can encounter all four seasons on one ride. A windproof and water-repellent front meets a highly breathable rear for superbly versatile comfort.

Come autumn, winter and spring you can face a wide range of conditions when you head out on your bike. And your efforts can range from slow and steady miles to high-intensity interval training. Here, getting your kit just right can be tricky. But this is where the Alpha ROS 2 Light Jacket excels.

The Perfect Balance

Achieving the perfect harmony between warmth, breathability and weather-protection is made possible via the unique double-layer construction. Inside, a Prosecco Strada inner liner with 2nd front zip works to move sweat off the skin and prevent you from getting wet and chilly when working hard. Meanwhile, the front of the Alpha Light uses Gore-Tex INFINIUM™ WINDSTOPPER® 150, highly breathable and windproof material with excellent water-repellency, fending off mist, drizzle and road spray. An outer zip lets you open the outer for extra ventilation while the inner can remain zipped up to keep your core protected.

Meanwhile, the back uses Nano Flex Xtra Dry, with nanotechnology water-repellent finish, providing a boost to breathability and air-exchange. When the pace increases and effort levels rise you'll be happy to find you don't end up drenched in sweat.

Fit and Features

The advanced patterning makes for an excellent close-to-body fit, the extra stretch at the waist keeping the fit sleek while a raw-edge waist lies flat and moves with you. Finished with a Castelli silicone text gripper at the waist, it keeps that jersey/jacket from riding up. Three rear pockets with reflective laser-cut drain holes plus a front zippered pocket take care of all your storage needs.

It may be called a jacket but it's so much more. For your more intense rides in wetter and changeable weather or for cool days of steady miles then the warmth, breathability and wet weather protection strike just the right balance to keep you dry and comfy all ride.

About the Castelli brand

Castelli proudly produce high performance cycling apparel. Since 1876, they've been the tailor for the champions. It was their innovative mindset which brought the earliest heroes & legends like Binda, Coppi and Bartali. Castelli cycle clothing became legendary too inventing the skinsuit, the silk jersey, pockets on jerseys, and the first LYCRA® short used in professional racing.