NuDown Men's Mount Tallac Jacket 100% Nylon Made in the USA and Imported Adjustable warmth, via NuDown's proprietary Variable Insulation Technology, empowers you to be precisely as warm as you want to be Add air to add warmth or release air to cool utilizing the pocket hand pump and release valve, also creating a supportive, athletic fit Polartec NeoShell lightweight, max stretch, dynamic air-permeable breathable, quiet, waterproof shell, pit zips, Primaloft Gold insulation in collar Ski pass, sleeve, chest audio and inside stash pockets, double-slider waterproof YKK zippers, waist draw cords, powder skirt, removable helmet hood Eco-friendly alternative to down feathers, thumbhole cuffs, limited lifetime warranty