The Flylow General's Down Jacket provides all the warmth you could ever want while remaining slim enough to fit a shell over. 700-fill down seals in tons of heat, while Flylow's stitch-through technology allowed it to reduce the amount of material used, so the General's Down is lighter and more packable than comparable down jackets. Flylow also used level 5 Dupont DWR coating, so the General's Down won't get sopping wet if you don't have a shell over it when it starts to precipitate.