What Our Gearhead(R) Experts Are Saying:"I wear the Xenair Alpine for everything from cold belays to skintrack climbs. It breathes like a fleece but insulates like a puff, which makes it super versatile. I've even thrown it on under a shell in stormy alpine weather-layered perfectly and kept me warm without overheating."From brisk alpine starts to fast-moving ascents, the Xenair Alpine Jacket is built to keep pace with mountain conditions. Rab engineered this all-around synthetic midlayer with variable intensity in mind-so whether you're gaining vert, managing an icy belay, or layering up for a ski tour descent, the Xenair delivers breathable warmth when it matters most. Stuffed with PrimaLoft(R) Gold Insulation Active+, the Xenair uses body-mapped placement to balance warmth and airflow, maintaining thermal regulation whether you're moving or standing still. The Pertex(R) Quantum Air shell resists wind while allowing internal moisture to escape, and articulated sleeves keep the fit dialed for overhead movement. Belay-friendly zips, helmet-compatible hood, and mitt-friendly adjustments complete the alpine-ready feature set, making this jacket a cold-weather essential for climbers, skiers, and mountaineers alike.