Offering the perfect backpacking balance of comfort vs weight, our Ascent Series sleeping bags have more space than traditional mummy bags, yet still provide the thermal efficiency you need when exploring above the treeline.


  • Tapered rectangular shape for perfect balance of space and adaptable warmth
  • Free-Flow half right side, full length two-way #5 YKK® left side and separate foot zips for freedom of movement, increased ventilation and dual-use as a quilt
  • Includes lightweight Ultra-Sil compression bag and storage cell
  • Large internal security pocket with flat zipper
  • Zip Coupling: This bag is designed to pair with another
  • RDS 750+ Loft ULTRA-DRY Down for superior insulating power


  • Accessories List: Stash Pocket, Stuff Sack, Draft Collar, Storage Bag, Draft Tube
  • Advanced Features: Anti-Snag Zipper, Zips to Another Bag, Drawcord Collar, Baffles
  • Assembled Width (cm): 24 cm
  • Assembled Width (in): 9.4488 in
  • Assembled Width (mm): 240 mm
  • Certifications: Responsible Down Standard Compliant, EN Tested
  • Comfort Temperature Rating (°C): -3 °C
  • Comfort Temperature Rating (°F): 26.6 °F
  • Compressed Volume (gal): 1.6379 gal (US)
  • Compressed Volume (l): 6.2 l
  • Compressed Volume (qt): 6.5515 qt (US)
  • Consumer Pack Size: 1
  • EN Rating: Lower
  • Fill Material: Down
  • Fill Weight (g): 550 g
  • Fill Weight (mL): 550 ml
  • Foot Circumference (cm): 122 cm
  • Foot Circumference (in): 48.0315 in
  • Hip Circumference (cm): 146 cm
  • Hip Circumference (in): 57.4803 in
  • Interior Lining Material: Nylon
  • Lining Colour: Green
  • Lower Limit Temperature Rating (°C): -10 °C
  • Lower Limit Temperature Rating (°F): 14 °F
  • Primary Colour: Green
  • Primary Material: Nylon
  • Product Use(s): Sleeping, Mountaineering, Camping, Outdoor, Outdoor Adventures, Hammock Camping, Backpacking, Tent Camping
  • Season: Summer, Spring, Fall
  • Shoulder Circumference (cm): 155 cm
  • Shoulder Circumference (in): 61.0237 in
  • Stuffed Stack Height (cm): 18 cm
  • Stuffed Stack Height (in): 7.0866 in
  • Stuffed Stack Length (cm): 24 cm
  • Stuffed Stack Length (in): 9.4488 in
  • Stuffed Stack Weight (lbs): 2.4 lbs
  • Type of Sleeping Bag: Semi-Rectangular
  • Zipper Placement(s): Half zip right, Left