<p>the obermeyer xenon jacket is built for the true mountain enthusiast and designed with a focus on performance and versatility. The hydroblock elite 20k/20k waterproof/breathable fabric provides maximum protection from the elements, while the 4-way stretch toray dermizax fabric and articulated sleeves offers full-motion comfort. The xenon jacket features allied feather & down 600 fill power duck down insulation, including a down hood baffle to keep you warm on the coldest days. Wit