The Ascend® 20° Mummy Bag boasts greater heat retention while still keeping the weight low for easy portability. Features double-layer quilted construction with hollow-fiber insulation (1 lb. 9 oz. fill weight), 300T polyester diamond ripstop shell, 210T poly-taffeta lining, fully adjustable contoured hood, trapezoidal footbox, and a 3" draft tube along the nylon zipper’s full length. Includes compression stuff sack for easy transport. Carry Weight: Regular - 3 lbs. 3 oz. Long - 3 lbs. 10 oz. Imported.