DESIGN & DETAILS: Ultralightweight, water-resistant sleeping bag built for overnights in low temps Designed with 900+ fill power goose down treated with water-resistant Down Defender Smooth, curved baffles reduce down shifting Compresses down into a stuff sack to fit into a small backpack for easy transport Mummy style hood prevents heat loss Center zipper for easy access Feely drawcords cinch hood ISO-tested for temperature rating