SKU: SS21648 Down Treatment: Hydrophobic Fill Power: 650 Fill Weight: 634g (based on size Regular) Insulation Type: Down Weighs: 1346g Comfort Limit: -11°C Zip Length: No Zip Type: Mummy The Backcountry Bed has a firm focus on comfort. The oversized design uses an extra wide quilt-like front that allows you to wrap up warm or vent heat quickly depending on conditions.   Sierra Designs says Sleep in… Womens Backcountry Bed 20 Down Sleeping Bag