Sierra Designs set out to create the warmest lightweight jacket on the market, and the Women's Elite DriDown Hooded Jacket is the result of those efforts. Lightweight and packable DriDown insulation keeps you toasty while maintaining a slim silhouette and keeping weight to a minimum. DriDown is also hydrophobic so it keeps insulating even if the jacket starts to soak through. The light, yet tough ripstop fabric features a DWR coating so it shrugs off light rain and snow. Extra length adds coverage for greater protection from the cold, and the hood is over stuffed with DriDown to prevent heat loss through your head and shield you from icy gusts. You can also cinch the hood tightly and use the thumbhole cuffs to seal out drafts and create sleeping bag like coziness.