The 4-season BTU -20 has been updated for 2012 and reconstructed to keep you toasty warm even as the mercury drops. 800-fill goose down provides maximum warmth to weight ratio. Drizone waterproof breathable shell fabric ensures that regardless of the weather, your bag will remain dry and you will sleep soundly! Side-wall, box baffle construction. Oversized, ergonomically shaped footbox. Microfleece lined foot box. Snag-free zipper tracks. Internal media pocket. Corded hood baffle. Draw cord at collar. Expedition Jacket Hood. Draft collar. Anti-microbial liner treatment reduces odor over long uses. Zipper draft tube. Tuck Stitch construction. Includes storage and compression stuff sacks. Easy access, ventable, 40 inch zipper. Fits to: 6 ft 6 in / 198 cm. Length: 84 in / 213 cm. Fill weight: 40 oz / 1.1 kg. Total weight: 4 lbs 7 oz / 2.0 kg. Stuffed diameter: 10 in / 25 cm. Stuffed length: 20 in / 51 cm.