Ascent 1100 Sleeping Bag: -15F Down

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Conquer extreme cold with the Ascent 1100 Down Sleeping Bag—ultralight, warm, and adventure-ready

What Our Gearhead® Experts Are Saying:

"This bag is incredibly warm and spacious, making it perfect for extreme winter conditions. The recycled fabric is both lightweight and durable, and the trapezoid baffles do a great job of eliminating cold spots. It's an excellent choice for anyone tackling high-altitude adventures or cold-weather camping."

When temperatures plummet, the Rab Ascent 1100 Down Sleeping Bag is our trusted refuge in extreme conditions. Designed with 650-fill hydrophobic duck down and recycled Pertex Quantum fabric, this bag provides exceptional warmth and durability while remaining lightweight and packable. The wide mummy shape offers comfort for a restful night's sleep, even when layered with additional clothing. Trapezoid-shaped baffles prevent cold spots, and a close-fitting neck baffle keeps heat locked in. The 3/4-length zipper with a down-filled baffle ensures easy access while maintaining warmth. With thoughtful features like an internal stash pocket, compression sack, and left-to-right zip compatibility, the Ascent 1100 is ready to take on the coldest adventures.

Details

Extra cozy sleeping bag for mountaineering, winter camping, and extreme cold expeditions
Hydrophobic duck down provides exceptional warmth and moisture resistance
Recycled Pertex Quantum fabric is lightweight, durable, and eco-friendly
Trapezoid-shaped baffles eliminate cold spots and maximize loft
Wide mummy shape and angled foot box increase comfort
Internal zip pocket keeps your headlamp at the ready
Stuff sack and storage bag included for toting and stowing
Item #RABZ0H3

Responsible Collection: Recycled/Repurposed, Responsibly Sourced
Material: [face fabric] 30D Pertex Quantum (100% recycled nylon), fluorocarbon-free DWR finish, [lining] 20D 100% recycled nylon
Insulation: 650-fill duck down (RDS-certified), Nikwax fluorocarbon-free hydrophobic finish
Shape: wide mummy
Zipper: 3/4-length, left or right
Max User Height: [regular] 6ft .8in, [long] 6ft 6.7in
Shoulder Circumference: [regular] 63in, [long] 63.8in
Hip Circumference: [regular] 52.8in, [long] 53.5in
Foot Circumference: [regular] 42.5in, [long] 43.3in
Bag Length: [regular] 84.6in, [long] 90.6in
Draft Tube: internal 3D collar, zipper baffle
Pockets: [internal] 1 zippered
Pad Retainer: no
Fill Weight: 38.8oz (1100g)
Degree: -13°F
Storage Sack: cotton with drawcord
Stuff Sack: included
Stuff Size: 17.7 x 10.2in
Claimed Weight: [regular] 3lb 12.8oz, [long] 4lb
Activity: backpacking, winter camping, mountaineering
Manufacturer Warranty: lifetime