The Men's Troll Wall Jacket is one of Marmot's lightest and most protective technical shells for backcountry touring and alpine climbing. Gore Tex Pro equips this 3 layer shell with durably waterproof, windproof, and extremely breathable protection. It reduces sweat accumulation to keep you cool during aerobic activities, and warms you when you're cooling down. An athletic fit with Marmot's Angel Wing Movement makes sure the jacket moves with you no matter what. The Troll Wall also features long, underarm PitZips for extra ventilation when you need it most. Marmot's ERG hood adjustment system includes a laminated visor that keeps the hood out of sight when you're belaying and secure in heavy winds. The hem and cuffs adjust to keep the jacket in place. You can always access the Pack Pockets, even with a backpack on, and there are two internal pockets one for drying skins and the other for securing keys.