Not every ridgeline allows for picture-perfect simul-climbing, which means you'll need a lightweight layer that can balance warmth and breathability. Lucky for you, Rab made the Men's Xenair Alpine Light Jacket. Packable and easy to bring along on any alpine mission, Rab stuffed this layer with dual-density Primaloft Gold synthetic insulation. With heavier insulation in front, back, and on top of the sleeves, you'll stay plenty warm while belaying. Lighter insulation on the side, underarms, and spine offers added breathability when it's your turn on the sharp end. The weather-resistant outer fabric sheds light rain and wind with ease, and the helmet-compatible hood lets you stay both protected and warm when the temperature plummets. Ideal for almost any mountain mission including ski tours, mountaineering, or mid-winter hikes, the Xenair Alpine Light Jacket is the cold-weather puffy your kit has been missing.