Quality tutorial from the folks at Arc’teryx on cleaning up that dingy puffy coat you haven’t washed in 5 seasons. Washing a down coat not only freshens up odors and removes unsightly stains but can improve performance by increasing loft and breaking up those nasty clumps that bunch up in the corner of panels that form over time. Pay close attention to the drying tips because that’s were people generally get in a rush and screw things up: