SKU: SS21646V Down Treatment: Hydrophobic Fill Power: 650 Fill Weight: 584g (based on size Regular) Insulation Type: Down Weighs: 1176g (Regular) Comfort Limit: -8.9°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… Backcountry Bed 20 Down Sleeping Bag