15D nylon ripstop with Thermoball™ insulation Insulation: 9.5 g/ft2 throughout the body, 15 g/ft2 in collar Exposed moulded-tooth centre front zip Internal elastic cuff Secure zip hand pockets Stowable in pocket Hem cinch cord Part of the Climatech condition and can be zipped together with compatible The North Face items. Keep out the cold with the Thermoball Zip-In Women's Insulated Jacket from The North Face. Ideal for keeping you warm on walks, this jacket is made with lightweight Thermoball insulation. Being synthetic, it works when wet, so you don't have to worry about keeping warm in downpours or when crossing knee deep rivers. The hem cinch cord keeps in even more warmth. When the action heats up you can stow away your jacket in its own pack - ideal for travelling.