Whether you’re backcountry touring or alpine climbing, the Ortovox Men’s 3L Ortler Jacket has the uncompromising blend of heavyweight weather protection and lightweight packability that will put a smile on any alpinist’s face when there’s a storm dumping snow overhead. Its waterproof rating is on par with some of the finest ski jackets out there, and the breathability rating is even better than that. The result is a jacket that can keep you comfy on sweaty ascents and comfortably dry and powdery descents. A three-layer construction keeps this jacket’s weight under a pound, and it packs down small since nobody has extra space in backpacks. There are also underarm vents and mesh inserts made of merino wool to enhance temperature regulation and create an altogether comfier microclimate inside.