The Castelli Raddoppia 3 Road Jacket is the workhorse jacket in the Castelli winter lineup. Castelli uses their warmest GORE-TEX INFINIUM™ WINDSTOPPER® fleece-lined fabric on the front and back to keep the wind out and the heat in. For the back of the sleeves and side panels, they use a lighter-weight GORE-TEX INFINIUM® WINDSTOPPER® for better fit and breathability. Castelli keeps the lines clean and doesn't add anything superfluous - unless you think the big reflective stripes front and back are superfluous. Functional details are all there, as you expect from Castelli: an easy-sliding YKK® Vislon® zipper and three big pockets for storage, along with a zippered key pocket for valuables ... More info