What They say: The Thunder Jacket is the pinnacle, über-lightweight mid-layer for outdoor athletes to sport in cold-weather conditions. With a true sweater-like fit, this luxurious 800 fill down jacket is a compact jacket for multi-purpose backcountry endeavors. Fabric: Pertex Quantam 100% nylon ripstop with DWR Avg Weight 332g Insulation: 800 loft Goose Down Length from Center Back: 25 in.  Performance fit Two hand pockets Jacket stows in hand pocket Elastic-bound cuffs Hideaway hem cinch cord

What GearGuys say: What a stunning piece!! Super popular with women around the world due to its soft, luxurious fabric, slender lines, lightweight and great warmth. Not everyone digs the Michelin-man look of other bulkier puffer jackets, this way you can have the warmth of down with a great styling. The jacket stows into its own pocket for easy stowage in a handbag or rucksack when not in use.