Summit Alpine 300 Sleeping Bag: 32 Degree Down

The 32 Degree Down Rab Summit Alpine 300 Sleeping Bag is ready to accompany you on your next alpine adventure. Weighing it at only 1 lb 11 oz and stuffing down to a size of 11 x 6.3 inches means that carrying this high-quality down-fill bag won't ruin your packing plans. Rab designers used 850-fill goose down on the top of the bag to achieve maximum loft and warmth efficiency. 610-fill goose down, a lower-loft fill, was used on the bottom of the bag because down loses it's ability to retain heat when compressed. This design maximizes efficiency for environments that accept nothing more.