700 fill power down makes it warm but also keeps it light. (The higher the fill power, the less is needed.) More exciting is that this down is also HyperDRYTM down. It’s specially treated to be water-resistant so you stay warm even if it gets wet. Plus being highly packable, this vest packs into its own pocket. How’s that for handy? Tunic’s longer length offers a bit more coverage and style. Hidden side pockets with secure zip closure. Inside welt pocket holds smaller items.