Designed with a comfortable wide shape, it's ideal for those buying their first down sleeping bag for use in cold, winter conditions. The Ascent 900 is a very warm bag with a comfortable, wide mummy fit. Filled with 900g of 650FP duck down and with space for wearing additional layers if needed, this bag can be used in cold temperatures. Ideal for four season use, in winter conditions similar to those in the UK, New Zealand or Scandinavia.

The Ascent is built with a lightweight and durable, recycled Pertex® Quantum outer fabric and recycled nylon lining. It has trapezoid shaped, boxwall baffles that stack neatly together, encouraging the hydrophobic duck down inside to loft fully and reducing the appearance of cold spots. Hand-filled in the UK, all our down bags benefit from never having had their down compressed before use, maintaining the down’s loft and warmth.

The generous mummy fit with wide foot box provide a spacious feel for an easy night’s sleep, and the close-fitting neck baffle keeps the heat in when the temperature drops. It has a ¾ length main zip with a down filled baffle to keep out the draught.

Practicalities are taken care of with an internal zipped stash pocket that easily fits a phone or headlamp, a cotton storage sack and a compression stuff sack to ensure a manageable pack size and protection on the road. Exploring with a partner or want extra space? Pick up a left and a right zipped bag and you can zip them together.

Features

Weight:(Regular) 1530g/54.0oz, (Long) 1610g/56.8oz
Insulation:650FP European Duck Down with Nikwax Fluorocarbon-Free Hydrophobic Finish (900g / 31.7oz)
Rab Sleep Limit:0°F / -18°C
Packed Size:17.7in x 9.4in (45cm x 24cm)
Product Code:QSD-39
30D Recycled Pertex® Quantum (50gsm) with fluorocarbon-free DWR
Lining: 20D Recycled Nylon (38gsm)
650FP European Duck Down with Nikwax Fluorocarbon-Free Hydrophobic Finish (900g / 31.7oz)
Trapezoidal boxwall construction, to maximise loft and warmth
3-dimensional shaped neck collar to seal in warmth
YKK 3/4 length main zip with down filled baffle to trap warmth
YKK Anti-snag zip insert and anti snag internal zip guard
YKK zipped internal stash pocket
Angled foot box for relaxed sleeping posture
Left and right hand bags can zip together
Drawcord stuffsack included
Zipped storage sack with water-resistant base for home storage
Outer: 100% recycled polyamide. Lining: 100% recycled polyamide.
Wide Mummy Shape - with proportionally designed differential cut

Activities

Camping
Mountaineering

Material Facts

Total Recycled Content*	38%
Fabric	100%
Outer	100%
Liner	100%
Hydrophobic Down	0%
Zips	38%
Trims	8%

Ascent 900 Down Sleeping Bag (0°F)

Q & A