The Rab Ascent -12C Down Sleeping Bag is a reliable down-filled bag and offers the versatility you need for regular mountain use. Armed with 650FP duck down, a spacious wide mummy shape, windproof Pertex® Quantum fabric, and a clever baffle construction that maximises warmth for weight, it's perfect for trekking and backpacking adventures.

This sleeping Bag is perfect if you are looking for a sleeping bag that prioritises warmth, comfort, and practicality while also giving you an easy night’s rest in the wild, without compromising on weight or pack size!

Hand-filled in the UK, all of Rabs down bags benefit from never having had their down compressed before use, preserving its loft and warmth.

Rab Ascent -12C Down Sleeping Bag - Regular - LH Zip Features: 

• 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 23537-1:2022
• 650FP European duck down with Grangers fluorocarbon-free hydrophobic finish (680g / 24.0oz)
• 100% Woven Polyamide Shell , Down filled sleeping bag
• 20D Pertex® Quantum nylon ripstop (38g/m²) with fluorocarbon-free DWR

Rab Ascent -12C Down Sleeping Bag - Regular - LH Zip Specifications: 

Weight: 1350g
Insulation: 650FP European duck down with Grangers fluorocarbon-free hydrophobic finish (680g)
Main fabric: 20D Pertex® Quantum nylon ripstop (38g/m²) with fluorocarbon-free DWR
Fabric lining: Lining: Recycled 20D nylon, 38g/m²
ISO (23537-1:2022) temperature rating: Comfort: -5°C, Limit of comfort: -12°C, Extreme: -33°C
Limit of Comfort: -12°C
Packed size: 22cm x 40cm 
Sleeping bag length: 215cm
Max user height: 185cm
Internal shoulder girth: 170cm
Internal hip girth: 140cm
Internal foot girth: 108cm