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Ascent 500 Sleeping Bag: 25F Down

5 out of 5 stars
6 Reviews
$300.00 - $320.00



Why We Like the Ascent 500 Sleeping Bag

With its wide mummy design and lofty 650-fill duck down, the Ascent 500 Sleeping Bag is roomy enough to accommodate side sleepers while staying warm enough for cooler nights under the stars. The outer Pertex Quantum fabric resists wind and unexpected showers to help keep you warm and dry at camp.


  • Roomy mummy bag for sound sleep while cool weather camping
  • Hydrophobic down treatment protects insulation from moisture
  • Compressible 650-fill duck down provides lightweight warmth
  • Durable, recycled nylon fabric resists campground wear and tear
  • Zippered stash pocket keeps your phone and lip balm at hand
  • Wide mummy shape and footbox can fit extra layers if needed
  • Main zipper includes down filled baffle to help seal in warmth
  • Item #RABZ0H6
Responsible Collection
[face fabric] 30D recycled Pertex Quantum (50gsm), fluorocarbon-free DWR [lining] 20D recycled nylon
650-fill RDS certified European duck down, fluorocarbon-free hydrophobic finish
wide mummy
internal zippered stash pocket
Fill Weight
European Norm/ISO Lower Limit Rating
Storage Sack
Stuff Sack
Stuff Size
13.8 X 7.9in
Claimed Weight
2lb 5.4oz
weekend camping
Manufacturer Warranty

Overall Rating

5 based on 6 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 0 reviews
4 Stars - 0 reviews
5 Stars - 6 reviews

Fits True To Size

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

What do you think about this product?


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5 out of 5 stars

May 11, 2024

Waterproof base to storage bag

Waterproof base to storage bag is such a clever feature (for when camping in the UK!)

Sue Z.

Originally reviewed on Rab

5 out of 5 stars

May 8, 2024

Kept me warm in a

Kept me warm in a bivvy bag in the snow in Fisherfield!

user image
Stephen C.

Originally reviewed on Rab

5 out of 5 stars

April 20, 2023

Packs Light & Small; Sleeps Roomy & Warm

I've put it through the wringer
Size Bought:
Regular Right
5' 11"

This bag is roomy and warn, while it packs small and light. The included storage sack and stuff sacks are perfect. Quality with every stick as expected with Rab products.

thebull t
5 out of 5 stars

January 23, 2023

Does exactly what it says

Does exactly what it says on the tin. Great product.

James H.

Originally reviewed on Rab

5 out of 5 stars

September 30, 2022

So far, so good!

I’ve just returned from our first wild camping trip with this bag and I couldn’t be happier! This is my first, shall we say higher quality, sleeping bag that I’ve bought after regularly camping for over ten years. I have only tested in temperatures down to 3degrees so far but I was lovely and warm the whole night. A great lightweight and packable sleeping bag that I did not want to get out of in the mornings! I’m not sure how many feathers I should be losing daily as this is my first down sleeping bag but it does seem like quite a lot? I’ve had mixed feedback from others who use down sleeping bags whether this is normal or not too so I’m not sure if it should be that many or not. In addition I just wish the bag came with some compression straps for when you need to pack it down even smaller for your bag. Other than that I am very happy. Hoping to continue use into autumn/winter, possibly adding an additional quilt or blanket to keep going in the lower temperatures.


Originally reviewed on Rab

5 out of 5 stars

April 18, 2022

Ordered the extra long sleeping

Ordered the extra long sleeping bag for my 6f5in grandson heading off on his first DoE camping trip. Despite bad weather in Peak District, he was always warm enough and snug enough, so good job done there!

Terence B.

Originally reviewed on Rab