Rab Ascent -12C / 10F Women

The Rab Women’s Ascent Down Sleeping Bag (-12°C) is designed for reliable warmth, comfort, and practicality during regular mountain and backcountry adventures. It strikes a strong balance between insulation performance and packability, delivering dependable cold-weather protection without unnecessary weight or bulk.

Filled with 650 fill power European duck down, the Ascent uses efficient baffle construction to maximise thermal retention while maintaining a controlled weight profile. The women’s-specific wider mummy shape offers additional room for comfort compared to more technical alpine-focused designs, making it ideal for trekking, backpacking, and extended trips where comfort is just as important as warmth.

A windproof Pertex® Quantum outer fabric helps reduce heat loss from cold draughts while keeping the overall weight low. Hand-filled in the UK, the down has never been pre-compressed before use, preserving maximum loft and long-term insulation performance. Durable, versatile, and built for repeated use, this sleeping bag is a dependable cold-weather companion for winter travel and mountain missions.

• L.O.F.T™ construction uses alternating wide and narrow baffles to achieve great warmth for weight.
• Sleep comfortably on your side thanks to the sidewall baffles, which reduce cold spots and ensure you’re not lying on a seam.
• A second shorter zip with integrated snap closure allows you to use your arms while retaining heat in your sleeping bag, ideal for cooking in the cold.
• Cinch in the hood to seal in the heat, while the synthetic insulated collar sits snugly around your neck.
• Sleep in a relaxed, comfortable position thanks to the roomy, anatomically shaped foot box.
• Keep valuables and essentials close at hand with a zipped internal stash pocket.
• Wide mummy fit gives space for extra layers when night temperatures plummet.
• Internal cordlocks positioned below your collar bone for greater side sleeping comfort.
• Two-way YKK® ¾ length main zip with synthetic-filled baffle.
• YKK® anti-snag zip insert and anti-snag internal zip guard.
• Drawcord stuff sack included.
• Zipped storage sack with water-resistant base for home storage.
• Hand-filled in Derbyshire UK.

SPECIFICATIONS:

Weight: 1330g/2lb 14.91oz

Insulation: 650FP European duck down with Grangers fluorocarbon-free hydrophobic finish (680g / 24.0oz)

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 (23°F), Limit of comfort: -12°C (10°F), Extreme: -33°C (-27°F)

Limit of Comfort: -12°C / 10°F

Packed size: 22cm x 40cm (8.7in x 15.8in)

Product code: QSN-04