The Fusion XCS Hoodie W from Millet has a water-repellent finish and protects you from the elements, but is elasticated and cut in such a way that it doesn't hinder your moves. The jacket also has all the other features you need for an alpine excursion: The hood fits under your helmet, the cuffs can be adjusted to keep out what should stay out, the hem can also be adjusted and the two side bags are positioned so that the belt and the bags don't get in each other's way.