This is the workhorse of Castelli winter jackets. It's made from our warmest GORE-TEX INFINIUM™ fabric, lined with fleece on the front and back for wind protection and warmth. For the back of the sleeves and side panels, we use a lighter GORE-TEX INFINIUM® WINDSTOPPER® fabric, which provides a better fit and increased breathability. Its lines are clean, and we haven't added anything superfluous—unless you think the large reflective strips on the front and back are. All the functional details are there, just as you'd expect from a Castelli garment: an easy-to-use YKK® Vislon® zipper, three large storage pockets, and a zippered pocket for keys, cash, and other essentials. The Raddoppia 3 jacket will keep you warm and visible all winter long.