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Rab Ascent 900 Hydrophobic Down Sleeping Bag

Discount Card Price
Retail Price £270.00

Colour: Chilli Powder - Collect Only
Collect In-Store
Collect In-Store
Available for Reserve & Collect
With your Discount Card

Home Delivery
Home Delivery
Not Available for Home Delivery

International Delivery
International Delivery
Not Currently Available for International Delivery - For Selected Countries


A super-warm, very comfortable, high performance down-filled sleeping bag.

Rab's Ascent range of sleeping bags are duck down filled performance sleeping bags designed for regular use - the Ascent 900 is the warmest, built for use in colder climates.

Made using durable and lightweight Pertex Microlight fabrics, they give you durable build and construction, with very effective warmth for bags of such low weight.

The Ascent 900's roomy semi-rectangular foot area gives you space to move without losing insulation, which is great for those who don't like the restriction of a mummy shaped bag.

The Pertex Microlight* outer shell and inner lining is ultra-light and very densely woven, holding the goose down fill in place without obstructing the bag's breathability.

It comes with two storage sacks - a large storage/carry sack, and a compression stuff sack - giving you the option of compacting the bag down to conserve space in your kit, or keeping it uncompressed for long term storage, to preserve the down.

  • Rab® fluorocarbon free Hydrophobic Down developed in conjunction with Nikwax®
  • Pertex® Microlight inner and outer fabric
  • 650FP European Duck Down
  • Wide mummy shape
  • Proportionally assigned differential cut
  • Internal YKK 3 coil zipped stash pocket
  • Wide foot area for extended comfort
  • 3⁄4 length YKK 5 coil main zip
  • Left and right hand zipped bags will zip together
  • Anti snag zipper webbing tape
  • Internal collar and hood drawcord
  • Trapezoidal baffle chamber design
  • Angled foot box
  • Compression stuff sack, cotton storage sack
  • Weight: 1530g/54oz (+170g/6oz stuffsack) 
  • Hand filled in Derbyshire


Comfort Temperature: -11
Limit Temperature: -19
Extreme Temperature: -40
Fill Power: 650
Fill Weight: 900
Foot Box Width: 50
Hip Width: 65
Hood: Yes
Insulation Type: Down
Max. User Height: 190
Shape: Mummy
Shoulder Width: 75
Stuff Sack: Yes
Weight: 1530
Zip Side: Left Hand
Draught Collar: Yes

Reviews (5)

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  • 5 out of 5
rab ascent 900, 07 May 2016
By dagsy (greater manchester)
spending a lot of time in the scottish highlands using a military sleeping bag i decided to upgrade. just returned from 2 weeks using this product and the first few nights woke up with cold areas due to sweating. thinking wearing a tee shirt and cotton shorts turned out to be the remedy for the sweating and coldness problem. immediatly noticed a better sleep. this turned out to be very comfortable, spacious and just the right temperature. it comes with two bags, a small stuff bag and a larger storage bag to protect the down from long storage in a compression sack. i would recommend this product if you are likely to camp in cold locations.

  • 4 out of 5
Rab 900 ascent review, 03 January 2016
By Scott (Horwich)
Just bought this sleeping bag for my Kilimanjaro Climb in October with a Rab approved comfort limit of -19 Celsius for men and -12 celius for women ( this is calculated with a base layer on and socks and thin fleece hat) I found this out by searches on the net.
I did look at other bags form ME, Alpkit, Montane etc but as I have to buy a lot of gear I decided to buy this with a great sleeping mat the Thermarest xtherm mat which is very cosy indeed and top rated too.... A must to keep you warm off the floor below freezing....
I got a great deal by using go outdoors price promise of beating ( by 10%) any in stock like for like size and colour on the net and saved 72 pound by doing so off the retail price!! Fantastic! So well done to go outdoors for this!
Haven't used it yet but I will update on using camping in early spring in the UK and after Kilimanjaro to let you all know information.
I was lacking a lot of info on the net so I thought I would help others get some at a later date.
P.s I'm 5ft6 athletic build and like being slightly warm at night sleeping.....

  • 5 out of 5
As warm as you will ever need, 15 March 2015
By DMOD (Snowdonia)
The only negative is the pack size and weight. However, if you are looking for a great bag for UK conditions, this is it! Only companies like PHD can improve on the performance of this bag. Go with Rab and don't take too much notice of reviews that cannot even spell ;-)

  • 2 out of 5
700 and 900 Rab Ascent, 09 February 2015
By land rover wolf (dumfries)
after getting two rab bags and doing a wild camp what a let down the bags are now i know why there so cheep and sendding them back on the 23.2.15

  • 5 out of 5
RabAcent900, 14 August 2014
By Mark Farley-Remington (West Midlands)
This sleeping bag is fantastic. It compacts down well. Is very light and will keep you warm in the coldest of nights. It's a pleasure to use.

Size Guide

This size chart should act as a guide only.

Men's Size Chart
Chest Size - 37 40 43 46 48
Waist - 30 32 34 36 40
Inside Leg - 32 32 32 32 32
Arm Length - 33 34 35 36 36

Men's Size Chart
Chest Size - 94 102 109 117 122
Waist - 76 81 86 91 102
Inside Leg - 81 81 81 81 81
Arm Length - 83 86 89 91 91

Women's Size Chart
Chest Size 33 35 37 39 41 -
Waist 26 27 29 31 33 -
Hip 35 37 39 41 43 -
Inside Leg 32 32 32 32 32 -

Women's Size Chart
Chest Size 84 89 94 99 104 -
Waist 66 69 74 79 84 -
Hip 89 94 99 104 109 -
Inside Leg 81 81 81 81 81 -



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