Rab Ascent Down Sleeping Bag (-12°C / 10°F)

The Rab Ascent Down Sleeping Bag (-12°C / 10°F) is ideal for those seeking dependable warmth in colder mountain conditions. Featuring 650FP duck down, a spacious wide mummy fit, and wind-resistant Pertex® Quantum fabric, it balances comfort with packability. Hand-filled in the UK, the down maintains its natural loft for consistent thermal efficiency.

Detail:
- L.O.F.T™ baffle technology reduces down migration, optimising heat retention and pack size
- Sidewall baffle construction for increased down loft and greater side sleeping comfort
- Anatomically fitted hood with drawcord adjustment to maximise comfort and heat retention
- Internal cordlocks positioned below the collar bone for greater side sleeping comfort
- YKK® zipped internal stash pocket
- 3D shaped neck collar with recycled Stratus™ insulation
- 2-way YKK® 3/4 length main zip with synthetic-filled baffle
- YKK® anti-snag zip insert and anti-snag internal zip guard
- Anatomically shaped foot box for relaxed sleeping posture
- Drawcord stuff sack included
- Zipped storage sack with water-resistant base for home storage
- Hand-filled in Derbyshire UK
- Wide mummy shape
- YKK® zipped arm access vent with integrated snap closure to retain heat during tent-based tasks
- Temperature rated in accordance with ISO 23537-2:2022

Technical Specifications:
- Weight: 1350g/2lb 15.62oz
- 20D Pertex® Quantum nylon ripstop (38g/m²) with fluorocarbon-free DWR
- Lining: Recycled 20D nylon, 38g/m²
- 650FP European duck down with Grangers fluorocarbon-free hydrophobic finish (680g / 24.0oz)
- 100% Woven Polyamide Shell , Down filled sleeping bag