The Ascent down mummy sleeping bag redefines what versatile means in a sleep system. Complex construction and high-quality down keep you warm when it’s cold outside, while the triple-zipper Free-Flow Zip system ensures you stay cool and ventilated when the weather warms.

Shaped to allow a natural sleeping position for comfort, the Ascent is light and compact enough to go everywhere your adventures may take you.

Best Use: Backpacking
Performance: 2.5 Season: 25°F (comfort range 25°F to 70°F)
Shape: More room between hips and knees to allow you to sleep in a natural position without compressing the down insulation and creating cold spots. Far more comfortable than narrow mummy bags for most sleepers.
ULTRA-DRY Down 750+ Loft 90% Down Cluster Premium Duck Down certified Responsible Down Standard (RDS)
Free-flow zipper system: full-length YKK #5 main side zip, half-length opposite side zip, and foot zip provides unparalleled ventilation and use as a comforter.
Vertical baffles over the chest to prevent down shifting as you roll over in your sleep.
Shaped hood, oversized draft collar, and zipper draft tube keep the cold out and the warmth in.
Internal pocket for phone / GPS / valuables.
Form a snug double sleeping bag by zipping to any Altitude, Journey or Venture sleeping bag.
Includes lightweight Ultra-Sil compression bag and storage cell.
Bag Weight: 2 lbs 0.8 oz / 930g
Compressed Volume: 6.4 L
Fill Weight: 13.1oz / 370g
Fits Up To: 6 ft 6 in / 198 cm
Temp/En Ratin: 25°F (Lower Limit)
Shell Fabric: Lightweight 20D Nylon Shell