Perfect for winter trekking, cold-weather backpacking and high-altitude mountain adventures, the Rab Ascent -12°C Sleeping Bag delivers reliable warmth and comfort when temperatures fall below freezing. Insulated with 650FP European duck down and treated with a fluorocarbon-free hydrophobic finish, it traps heat even in damp conditions while keeping weight and bulk to a minimum.
Designed with a wide mummy shape, roomy footbox and anatomically shaped hood, it offers room for extra layers, and a relaxed sleep on overnight expeditions or extended trips. L.O.F.T baffle technology reduces down migration and optimises heat retention, while sidewall baffles help maintain insulation around your body. The shaped neck, adjustable cordlocks and anti-snag three-quarter length zip work together to keep warmth in and cold out. A second shorter zip with integrated snap closure lets you use your arms for tent-based tasks while retaining heat, and a zipped internal stash pocket keeps valuables and essentials close at hand.
Constructed with a lightweight yet durable 20D Pertex Quantum ripstop nylon outer and a PFC-free Durable Water Repellent (DWR) finish, the Ascent resits condensation, light moisture and wind. Supplied with a drawcord stuff sack for transport and a zipped storage sack with a water-resistant base for home storage, this versatile down sleeping bag is a trusted companion for winter camping and regular mountain use.
Technical details
Trekking, camping
Materials:
Main: 20D Pertex Quantum nylon ripstop
Shell: 100% Woven polyamide
Lining: Recycled 20D nylon
Insulation: 650FP European Duck Down (RDS certified)
PFC-Free Durable Water Repellent (DWR) finish
Grangers fluorocarbon-free hydrophobic finish
Key features:
YKK zipped arm access vent with integrated snap closure
Zipped storage sack with water-resistant base included
3D shaped neck collar with recycled Stratus insulation
Internal cordlocks positioned below the collar bone
YKK zipped internal stash pocket
2-way YKK 3/4 length main zip
Drawcord adjustment on hood
Greater side sleeping comfort
Anatomically shaped foot box
Drawcord stuff sack included
Sidewall baffle construction
Anti-snag internal zip guard
L.O.F.T baffle technology
Anatomically fitted hood
YKK anti-snag zip insert
Wide mummy shape
Windproof
Versatile
Tech specs:
Temperature rating: Limit: -12°C, Comfort: -5°C, Extreme: -33°C
Packed dimensions: 22 x 40cm
Weight: 1350g
Material
Insulation Type Down Outer fabric composition 20D Pertex Quantum Nylon RipstopTechnical Features
Season rating 4 Season Min. comfort temperature -5°C to 0°CSpecification
Sleeping bag shape Mummy Shape Sleeping Bag Insulation Type DownFit/Measurements
Weight (g) 1350Other features
Brand Rab Ideal For Camping Product Code G4HB3E0102






































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