The DUOS jacket can also be a vest, if necessary, when you can easily remove the sleeves thanks to the zipper. It is also suitable for more changeable weather. It is made of very light and densely woven, windproof and breathable material. It’s so light that when you’re wearing it, you hardly know about it. It has a long main zipper, which is covered with a protective layer at the end under the chin. You can also easily pack DUOS in your back pocket in a matter of seconds. The collar is made of combed material on the inside.