Incredibly warm 650-fill insulation helps maintain core body heat to the summit and back.

If you stop and think about it a dependable climbing jacket is as essential as a reliable mountaineering rope. A four-season mountaineering shelter can save you from the elements and a -40F rated sleeping bag can provide adequate warmth but it's your jacket that's going to protect and insulate you all the way back to civilization which is why this 650-fill down Sub Zero SL Hooded Jacket is such an essential fit for expeditions and extended climbs. It offers waterproof/breathable performance in the form of a special Conduit™ SL laminate that facilitates vapor transfer without sacrificing body heat. You'll find reinforcement fabric along all key abrasion areas of the garment and plenty of internal and external pockets for gear.