The streamlined and more-technical sister to our best-selling Aria Hoody, the 650-fill down insulated Sonata Hoody is an instant classic and our new featherweight champ. Ultra-lightweight and incredibly packable, the Sonata's toasty down is stuffed into a Pertex Quantum shell. Built to withstand use and abuse, this puffy is perfect for battling serious cold or taking the bite out of shady late fall belays.