Scale icy alpine peaks and frozen crags with the warmth and protection of the The North Face Men's Irondome Jacket. The 700 fill ProDown insulation is water resistant and encased with tough nylon along the shoulders, arms, and side. This means it keeps moisture at bay ten times longer than regular down jackets, which is perfect for cold, wet conditions in the backcountry. When worn as a single layer, the DWR treatment repels rain showers and snow flurries while still offering a breathable fit. So no matter how long you're dangling from an chilly precipice, this jacket holds your body heat in and pushes the sweat out.