The Venture(TM) women&&';;s synthetic mummy sleeping bag brings new levels of versatility to the realm of synthetic-insulation sleep systems. A full-length right-side zipper, a half-length left-side zipper, and a foot box zipper provide unparalleled ventilation or allow the Venture to be opened completely flat like a comforter. The unique WaveLoft(TM) construction allows the ThermoliteA(R) insulation to expand out into air-trapping curves for maximum warmth, and the overall wider mummy shape of the Venture matches your natural sleeping position for supreme comfort Whatever the weather conditions - make sure you pack this bag before you venture out.Highlight Best Use Backpacking Performance 2 Season: 32AdegF (comfort range 32AdegF to 75AdegF) 2.5 Season: 23AdegF (comfort range 23AdegF to 70AdegF) Designed to keep women warm with ThermoliteA(R) insulation placed throughout the bag using body-mapping to maximize warmth for a woman&&';;s physiology A wider mummy shape between hips and knees to allow you to sleep in a natural position without compressing the insulation and creating cold spots. Shorter overall length and narrower girth in shoulders to reduce dead space and increase thermal efficiencyFEATURES High-quality ThermoliteA(R) insulation is loftier and more durable for lasting warmth. Full-length YKKA(R) #5 main side zip and foot box zip provide superior ventilation and allow the bag to be used as a comforter. Shaped hood and zipper draft tube keep the cold out and warmth in (Venture 23AdegF also has a draft collar) Form a snug double sleeping bag by zipping to any Ascent(TM), Trek(TM) or Traverse(TM) sleeping bag Includes lightweight 70D nylon compression bagTECH SPECSFor 23AdegF REGULAR BAG SERIES - Venture 2 BAG WEIGHT - 3lbs 0.7oz / 1380g COMPRESSED VOL (ASTM STANDARD) - 8.9 L COMPRESSION SACK - M - 14L to 4.5L FITS UP TO - 5 ft 7 in / 170 cm SEASON RATING - 2.5 Season WOMEN&';S TEMP (EN RATING) - 23AdegF / -5AdegC Circumference at Chest: Regular: 58 in / 148 cm Long: 60 in / 152 cm Circumference at Hips: Regular: 58 in / 148 cm Long: 60 in / 152 cm Circumference at Foot: Regular: 46 in / 118 cm Long: 48 in / 122 cm For 23AdegF LONG BAG SERIES - Venture 2 BAG WEIGHT- 3lbs 6.7oz / 1550g COMPRESSED VOL (ASTM STANDARD) - 11.5 L COMPRESSION SACK - L - 20L to 6.5L FITS UP TO - 5 ft 10 in / 179 cm SEASON RATING - 2.5 Season WOMEN&';S TEMP (EN RATING) - 23AdegF / -5AdegC