Design and Details Insulated draft tube protects you from cold air interrupting your precious slumber 5 1/4" Spacing/Continuous Baffles that encircle the bag from zipper to zipper 10 oz of down fill with 850 fill power A narrow cut of 59/38" Shoulder/Foot girth maximizes heat efficiency 1 lb 3 oz total weight makes this Western Mountaineering's lightest bag with continuous baffles 4" of Loft and rated at 32 F Full-length #5 YKK Zipper.
