Castelli Alpha RoS 2 W Light winter Jacket woman

This jacket is about the art of dressing just right for cool conditions. Those days when you need some protection from the cool air but not enough to bring out the winter jacket. Overdress and you'll be sweating and get cold because you're wet. Underdress and you never fully warm up to enjoy the ride. 

The concepts behind the construction are fairly simple: wind protection on front-facing surfaces, highly breathable fabrics on back-facing surfaces, and all-around water repellency in case you get a few drops of rain. The wind protection comes from GORE-TEX INFINIUM™ WINDSTOPPER® lightweight two-way-stretch fabric that moves with you while being so light you'll hardly notice it's there.

This light wind layer is backed by a separate ProSecco Strada inner layer with a separate zip that can be opened independently for perfect ventilation control. The back is made from  Nano Flex Xtra Dry fabric that provides a good level of insulation yet has no membrane so allows for ample amounts of sweat to escape. The fit is close to body so there is no fabric flapping around, while the little details make the difference: easy-sliding YKK® zippers, reflective drain holes on the pockets, a lie-flat silicone gripper band around the waist.

• GORE-TEX INFINIUM™ WINDSTOPPER® 150 fabric on front and sleeves for wind protection with high breathability and effective rain protection

• Nano Flex Xtra Dry on back for more ventilation allows heat and sweat to escape while shedding rain thanks to a nanotechnology water-repellent finish

• Alpha double-layer construction separates windproof layer from insulation layer, allowing better ventilation management

• Inner layer in ProSecco Strada for lightweight insulation with effective moisture management

• Double YKK® Vislon® front zippers

• Zippered secure side pocket for valuables

• 3 rear pockets with reflective laser-cut drain holes 

• Raw-edge waist lies flat and moves with you