Don’t let its packable size fool you, the Patagonia Nano Puff Jacket packs a punch in all weather conditions. Made from lightweight, 100 percent recycled polyester, the Nano Puff jacket boasts a durable water repellent (DWR) finish and excellent insulation. The Nano Puff jacket is also windproof to help lock in warmth. The jacket is packed with 100 percent post consumer recycled polyester insulation that stays warm when wet and locks in heat when the weather turns cold. A brick quilting pattern stabilizes the insulation so there’s no awkward clumping, only sleek style. An adjustable drop-hem helps you seal in warmth while a wind-resistant storm flap behind the center zipper keeps heat in and cold out. Two zippered hand pockets keep your mitts warm and your belongings secure. The internal chest pocket also works as a stuff bag so you can fold your Nano Puff Jacket down and easily pack it away without added bulk.