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KSB 20 Down Sleeping Bag: 20F Down

4.775510204081633 out of 5 stars
49 Reviews
Color:Rust Red/Grey



KSB 20 Down Sleeping Bag

Don't let the KSB 20 Down Sleeping Bag's trash bag silhouette fool you into thinking that it's anything but a treasure. The KSB weighs in at 2lb 12oz and touts a budget-friendly price tag despite its technical features and lightweight constitution. A 20-degree temperature rating makes the bag ideal for three-season adventures when temperatures are cool.


  • 3-season sleeping bag that balances weight savings and comfort
  • Durable nylon outer with DWR treatment keeps you covered
  • 650-fill duck down provides lofted warmth in cool temperatures
  • Synthetic fill on the bottom retains heat when mildly wet
  • Stretch baffles provide unencumbered mobility while sleeping
  • Cozy lining offers a silk-inspired feel, prevents moisture buildup
  • Half-moon foot box retains warmth for warm and happy toes
  • Mummy style traps heat and keeps weight down for involved missions
  • Item #KLTE00F
20D nylon, DWR coating
[top] 650-fill duck down, [bottom] synthetic
Max User Height
[large, x-large] 6ft 10in
Shoulder Circumference
[large] 58in, [x-large] 78in
Hip Circumference
[large] 60in, [x-large] 80.5in
Foot Circumference
[large] 40in, [x-large] 42in
Bag Length
Draft Tube
1 stash
Pad Retainer
Stuff Sack
Stuff Size
[large] 9 x 14.25in, [x-large] 9.75 x 14.5in
Claimed Weight
[large] 3lb 2oz, [x-large] 3lb 11oz
Manufacturer Warranty
2 years

Overall Rating

5 based on 49 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 1 reviews
3 Stars - 1 reviews
4 Stars - 6 reviews
5 Stars - 41 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

April 19, 2024

Good bag for the price!

I've used it several times
Size Bought:

I bought this bag as a replacement for my old bag and am loving it! I'm a big guy, 6'3" 300. I got the large for obvious reasons, it fits great! I run warmer than most people, this bag has been more than adequate for Temps in the teens. I can't say enough about the room in this bag, super comfortable!

5 out of 5 stars

September 12, 2023

This bag rocks!

[This review was collected as part of a promotion.] Took this on a multi-day pack trip into high mountains of Wyoming. Love the room it provides for the weight. Would recommend this bag to anyone.

Brian B.

Originally reviewed on

5 out of 5 stars

September 12, 2023


[This review was collected as part of a promotion.] Stretch baffles make this sleeping bag so comfortable...

roger s.

Originally reviewed on

5 out of 5 stars

March 29, 2023

Exceptional Sleeping bag

I’ve used this bag several times now for backpacking in the snow and winter camping with cold winds. I’ve been in conditions with temps in the 30’s. This bag was warm and very roomy. I love the stretch feature that allows me to not feel like I’m in a straight jacket since I like to roll a bit in the bag. I’m not tall. I’m 5’10, but I weight 230 and I had plenty of room. The bag is light weight as well. It doesn’t pack down super small but it’s not bulky either. I love this bag so far.

Sean W.

Originally reviewed on

4 out of 5 stars

March 28, 2023

Give it back man

I got this for myself but my boy took it on a weekend camp and wont give it back. He loves it. Oh well, I guess I get a new one. Heck yea. Pro's It warm and comfortable, Con's I cant use it.

Originally reviewed on

5 out of 5 stars

March 27, 2023

Solid Choice for a wiggle worm

I am a side sleeper, and often switch sides throughout the night. This bag is cozy and warm and allows for movement. I have used it for many backpacking trips and it has never given me any problems. Big fan of the no snag zipper and packability. This would be a perfect bag for anybody wanting a warmer bag.

Brett U.

Originally reviewed on

2 out of 5 stars

March 9, 2023

Way more bulky than it

Way more bulky than it seems or they claimed. Fine for car camping or but not for light weight adventures

Evelyne G.

Originally reviewed on

5 out of 5 stars

March 4, 2023

The KSB 20 sleeping bag

The KSB 20 sleeping bag worked out great for my first truck-camping trip over the last weekend. The weather was about 40 degrees outside, and it got quite toasty outside of the elements. I would've been comfortable sleeping in the weather, and if the bag would be optimal for a bit colder weather. The sleeping bag packs super compact, and it is very light to put on my 72 hour bag, or just to keep it in the truck as an emergency item. I wish I had purchased the KSB 20 sooner!

Henrique R.

Originally reviewed on

5 out of 5 stars

February 22, 2023

Great Sleeping Bag

Very comfortable and warm sleeping bag. Travel a lot for work and is easy to pack as well store with my luggage

Mark G.

Originally reviewed on

5 out of 5 stars

December 26, 2022

Great bag

This bag is easily packable, light and compact. Although I haven't used it in extreme cold conditions, it is warm and comfortable and should work great with a pad. Looking forward to using it further.

Tony B.

Originally reviewed on