When skipping the crowds and chopped runs for hard-earned, untouched lines, we zip into the Mammut Haldigrat Air HS Hooded Jacket for the performance the backcountry requires. The underarm vents dump heat as we climb the skintrack, while the windproof material and adjustable cuffs and hem stop crosswinds from chilling our bones. When fresh snow starts to fall, we cinch the hood over our helmet and watch the flakes slide right off the impermeable exterior. Once at the drop, we slip our skins inside the large chest pocket to keep them from freezing up on the descent.