The insulation is light, warm Primaloft® Black Eco which is 80% recycled – another win for you and the environment. An H2FLOW™ ventilation system enables you to retain or release heat as needed, so you can hold an optimal temperature when you’re working hard. A Life Pocket+™ keeps your phone alive longer in the cold. More features you need for a great ski trip: a RECCO® transponder, a ski pass pocket, a helmet-compatible and detachable hood and a snap-away powder skirt.