The warmest in the Ascent range, the Ascent 1100 is a down-filled sleeping bag that provides reliable protection in cold winter conditions. Designed specifically for regular outdoor use, this is ideal for those buying their first down sleeping bag for serious winter use. The Ascent 1100 is a hard-wearing high performing sleeping bag you can depend on for comfort and protection in cold winter conditions. Ideal for general purpose outdoor use, from bothy to bivvy, the Ascent range equips you for regular mountain adventures. Durable, tough, and reliably warm, the Ascent is especially suitable for those wanting to invest in their first down sleeping bag. Offering excellent value for the feature set, which is similar to that of the more technical Rab bags, this is a hard working piece providing protection and comfort on the mountain.
Features
- Pertex® Quantum outer fabric
- 650FP R.D.S. Certified European Duck Down
- Rab® Fluorocarbon free Hydrophobic Down developed in conjunction with Nikwax®
- Wide mummy shape
- Proportionally assigned differential cut
- Internal YKK® 3 coil zipped stash pocket
- Wide foot area for extended comfort
- ¾ length YKK® 5 coil main zip with noctilucent puller
- Anti-snag bonded zip guard
- Left and right hand zips available
- Internal collar and hood drawcord
- Close fitting neck baffle design
- Trapezoidal baffle chamber design
- Angled foot box
- Compression stuff sack
- Cotton storage sack
- Filled in Derbyshire UK
Specifications
- Weight: 1725g
- Temperature: -25°C
- Insulation Type: 650FP R.D.S. Certified European Duck Down: 1100g
- Outer Fabric: Pertex® Quantum: DWR 80/20, 49g/m², 30d/30d, 100% nylon









Emily Johnson –
The Rab Ascent 1100 Sleeping Bag is a game-changer for cold-weather camping. The LH zip is a thoughtful addition, making it easy to use for left-handed campers like me. The warmth-to-weight ratio is impressive, and it packs down smaller than I expected. Highly recommend!
Michael Thompson –
I’ve used this sleeping bag on several hiking trips, and it has exceeded my expectations. The standard camp/tramp design is versatile, and the materials feel durable. It kept me warm even in below-freezing temperatures. A solid investment for serious adventurers.
Sarah Lee –
This sleeping bag is perfect for backpacking! It’s lightweight yet incredibly warm. The horizontal baffles prevent cold spots, and the LH zip is a nice touch. My only gripe is the price, but it’s worth it for the quality.
David Carter –
The Rab Ascent 1100 is a fantastic sleeping bag, but it’s overkill for mild climates. I used it during a summer camping trip and ended up overheating. It’s ideal for winter or high-altitude adventures, though. Great craftsmanship!
Jessica Rodriguez –
I’m so impressed with this sleeping bag! The down fill is incredibly warm, and the LH zip makes it easy to adjust temperature without fully opening the bag. It’s a bit pricey, but you get what you pay for. Highly recommend for outdoor enthusiasts.
Brian Miller –
This sleeping bag is top-notch. The quality of the materials is evident, and it’s incredibly comfortable. The LH zip is a minor detail, but it makes a big difference in usability. It’s a bit bulky when packed, but the warmth is worth it.
Amanda Harris –
I bought this for a mountaineering expedition, and it performed flawlessly. The Rab Ascent 1100 kept me warm in extreme conditions, and the LH zip is a thoughtful feature. It’s an excellent choice for serious outdoor adventurers.
Kevin Brown –
Great sleeping bag, but not for everyone. It’s designed for cold weather, so it’s too warm for summer trips. The LH zip is convenient, and the build quality is excellent. Just make sure it suits your needs before purchasing.