The Traverse transitions easily into warmer weather with a full-length left-side zipper, a half-length right-side zipper, and a food box zipper provide that unparalleled ventilation or allow the Traverse to be opened completely flat like a comforter. In colder weather, the unique WaveLoft construction allows the Thermolite insulation to expand out into air-trapping curves for maximum warmth.. . . . . More room between hips and knees to allow you to sleep in a natural position without compressing the insulation and creating cold spots. Far more comfortable than narrow mummy bags for most sleepers.. WaveLoft construction and high quality Thermolite insulation are loftier and more durable for lasting warmth.. Full-length YKK #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. Form a snug double sleeping bag by zipping to any Altitude, Journey or Venture sleeping bag. Polyester (using WaveLoft construction). Durable 30D DWR Nylon shell. Main side zip and foot box zip provide superior ventilation and allow the bag to be used as a comforter.. Spot clean. Imported. . . . . 25deg Regular Length. . . 2.5 Season: 25degF (comfort range 25degF to 70degF). BAG WEIGHT: 2lbs 7.9oz / 1130g. COMPRESSED VOL (ASTM STANDARD): 7.3 L. COMPRESSION SACK: S - 10L to 3.3L. FITS UP TO: 6 ft / 183 cm. TEMPERATURE (EN RATING): 25degF (Lower Limit). WOMEN'S TEMP (EN RATING): 35degF (Comfort Limit). . . . . 15deg Regular Length. . . 3 Season:&nbs