The Patagonia Hyper Puff Hoody is a Hyber DAS synthetic insulated jacket, so is not only incredibly warm, but also performs when wet, unlike down jackets. Easily packable into its stuff sack, the Hyper Puff lofts quickly when unpacked, allowing it to keep you warm as soon as you need it. The Patagonia Hyper Puff Hoody will be available from mid July, 2017. See more from Patagonia here.