The goal when Castelli started work on the ROS Alpha Jacket was to create a winter jacket that is good as it can be for cold days. A jacket offering supreme comfort and breathability, a jacket that can adapt to changing temperatures and conditions. Additionally they wanted a jacket that if you did get caught in a heavy shower or the day turned for the worst, you would make it back home warm and mainly dry. A jacket designed for winter riders with you not having to take a cape out with you. As close to a one box solution as modern fabrics and technologies allow.

SKU: castelli-alpha-ros-jacket-cold-wet-5-to-10c Category:

ROS – Rain or Shine engineering provides insulation and breathability for cold dry conditions with great protection during wet rides.

Articulated Collar for better fit

Gore Windstopper 150 fabric is windproof highly breathable and offers great protection from rain and spray

Seam sealing on the shoulders with a reduced seam main body and double stitching work to keep you dry in all but the worst conditions

Dual layer Alpha construction separates insulation and protection to create better ventilation, moisture evaporation and breathability

Part covered waterproof YKK Vislon zipper lays flat and slides easily

Raw edge waist follows the body contours, lays flat and is low bulk

Raw edge wrists create a perfect interface with Castelli gloves

The stretch fabrics combined with the latest advanced patterning creates a close fit on a wide range of body types

Back ventilation for greater comfort

Castelli silicone text gripper at waist keeps the jacket from riding up

Front zippered key pocket – with waterproof zip

3 large open rear pockets with laser cut reflective drainage patterning