Rab Arete Jacket - The Arete jacket is a medium cut down jacket for every day usage and now uses a new Pertex Microlight 30 denier outer fabric. The Arete has all the features you look for in a warm winter jacket for casual use, but features a Pertex Microlight 30D outer fabric, and 260g/9oz US650 fill European duck down so it will perform for hill and mountain use as well. Zipped hand-warmer pockets and a fleece lined collar further add to the comfort of the jacket.