Sierra Designs' warmest jacket, the Men's Elite DriDown Parka is designed like a mummy sleeping bag with baffled panels to deliver an angelically warm cocoon when you're up against some of the coldest conditions. Insanely warm, but also tough, the Elite's rugged nylon and polyester ripstop construction defends against unpredictable trails ahead, while its DWR coating helps shed moisture through passing storms. Pushing the limits of what down's capable of, this jacket is packed with 850 fill DriDown, which stays dry ten times longer than untreated down and dries 30 percent faster. It also retains two times more loft than untreated down to keep you wrapped up in lofty, lightweight, fiery warmth throughout all of your cold weather adventures. Warmer than a quilted construction, the baffled panels stop heat from seeping out, while the thin PU coating in the shell prevents down from leaking through and provides extra water and wind protection. The front zipper secures the hood around your face without any fiddly drawcords for a constantly comfortable fit, and the insulated front pockets act as a warm shelter for frozen fingers. If you're camping and forgot a pillow, this parka stows inside the interior pocket to become a compact cushion with a soft, brushed cover.