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Kelty

Kelty Cosmic 20 Down Mummy Sleeping Bag for Backpacking Campers 550 Fill Power Recycled Fabrics with PFAS-Free DWR

$179.95
sizeS

114+ bought in the past month

About this item

  • Recycled Nylon and Recycled Polyester Taffeta
  • Imported
  • A KELTY CLASSIC: The cosmic 20 has long been a staple of Kelty’s backpacking lineup and a favorite of campers worldwide with 550 FP compressible down, silky soft fabrics, dual direction zippers, the cosmic is built for comfort at the campsite
  • PFAS FREE AS IT SHOULD BE: None of that toxic stuff here – Recycled nylon and polyester taffeta shell and liner fabrics to keep even more out of the landfill, finished with durable water repellent. Planet Earth approved
  • SUSTAINABLE + TRACEABLE DOWN: Did we mention all our down is 100% ethically sourced and traceable via RDS? Info on product tag to trace each specific batch of down, Kelty means business when it comes to sustainability.
  • 1952: Since Eisenhower was in the oval, Kelty has been designing camping gear in sunny Colorado. A founding member of The Conservation Alliance, Kelty continues to lead the industry with quality gear for your outdoor shenanigans on or off the trail
  • THE DEETS: Each size up represents additional 6” of total length: Short fits sleepers up to 5’ 6”, Regular 6’, Long 6’ 6”. ISO limit rating 21 degrees, ISO extreme rating -11 degrees. Total weight about 2 lbs. 6 oz. (regular) stuffed size 13 x 7”

Key details

material
‎Nylon, PFC-free DWR
color_spec
‎Dark Blue
Brand
Kelty
Color
Dark Blue
Occupancy
1 Person

Dimensions and fit

weight
‎2.85 Pounds
item_package_dimensions_l_x_w_x_h
14.41 x 7.87 x 6.14 inches
package_weight
1.3 Kilograms
item_dimensions_lxwxh
84 x 30 x 3 inches
item_weight
2.85 Pounds
size
Long

Technical specifications

model_name
Cosmic Down Mummy
model_year
2024

Item information

Shape
Mummy
Seasons
3 Seasons
Temperature Rating
20 Degrees
Age Range (Description)
Adult
Sport
Camping & Hiking, Backpacking
Special Feature
Highly Compressible and Lightweight, RDS Certified Down, Recycled Shell + Liner Fabrics
brand_name
Kelty
warranty_description
Kelty Limited Lifetime Waranty
suggested_users
unisex-adult
manufacturer
Kelty
part_number
35413724LR
style
Updated Version
included_components
Kelty Cosmic 20 Sleeping Bag, Kelty Limited Lifetime Warranty, Stuff Sack
outer_material
Recycled 20D Nylon Taffeta
fill_material_type
Down
sport_type
Camping & Hiking, Backpacking
best_sellers_rank
#12,884 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #34 in Camping Sleeping Bags
date_first_available
January 18, 2024
Highlights

About this item

  • Recycled Nylon and Recycled Polyester Taffeta
  • Imported
  • A KELTY CLASSIC: The cosmic 20 has long been a staple of Kelty’s backpacking lineup and a favorite of campers worldwide with 550 FP compressible down, silky soft fabrics, dual direction zippers, the cosmic is built for comfort at the campsite
  • PFAS FREE AS IT SHOULD BE: None of that toxic stuff here – Recycled nylon and polyester taffeta shell and liner fabrics to keep even more out of the landfill, finished with durable water repellent. Planet Earth approved
  • SUSTAINABLE + TRACEABLE DOWN: Did we mention all our down is 100% ethically sourced and traceable via RDS? Info on product tag to trace each specific batch of down, Kelty means business when it comes to sustainability.
  • 1952: Since Eisenhower was in the oval, Kelty has been designing camping gear in sunny Colorado. A founding member of The Conservation Alliance, Kelty continues to lead the industry with quality gear for your outdoor shenanigans on or off the trail
  • THE DEETS: Each size up represents additional 6” of total length: Short fits sleepers up to 5’ 6”, Regular 6’, Long 6’ 6”. ISO limit rating 21 degrees, ISO extreme rating -11 degrees. Total weight about 2 lbs. 6 oz. (regular) stuffed size 13 x 7”

From the brand

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Customer reviews

203 reviewsPositive

Rated 4.7/5 across 203 reviews — highly regarded by customers.

  • 100% of sampled reviews are from verified purchases.
  • 88% of sampled reviews give 4–5 stars.

Customers say

Customers find the sleeping bag keeps them warm in cold temperatures and appreciate its high quality, comfort, and lightweight design. Customers consider it a great value for the price.

Generated from the text of customer reviews

★★★★★

Warm and packs down well

I bought the Kelty Cosmic Down 20 for fall backpacking trips and so far it has totally exceeded expectations. It kept me warm in temps down to the high 20s °F with just a base layer and a decent sleeping pad. The down insulation lofts up nicely, and I really like the hood and draft collar features—little things that make a big difference on cold nights. It packs down smaller than I expected (fits in my 50L pack with room to spare), and for the price, this is probably one of the best value down bags out there. It's not ultralight, but it's light enough for most weekend or multi-day hikes. Only downside is the mummy shape is a bit snug if you toss and turn. But the footbox has enough space and I still slept comfortably. Highly recommend for 3-season use if you want warmth and quality without breaking the bank. Read more

Josh PVerified purchase
★★★★★

Tight at the shoulder

Excellent bag, well built, lightweight, and warm, perfect for backpacking. Comfortable down to about freezing (32°f). I am 6' 2" tall, about 26" across at the shoulder. I purchased the long version. Length is good probably fit a guy up to 6' 6". However the bag is "snug" at the shoulder and arms. Not tight per say but not a lot of room eather. Difficult to fully zip and unzip because it is tight with one arm flexed or "bent" in order to zip. If you are a barrel chested, muscular, or husky man you are not going to like this bag. I have taken to using it as a blanket. Otherwise very happy. Read more

Ralph DoellmanVerified purchase
★★★★★

Perfect!

Don't put in washer!!!! Very cozy and warm and perfect size! Good for backpacking and camping in cold weather. Read more

EllieVerified purchase
★★★★★

Best quality for the price!

Very warm, high quality bag! I’ve owned several sleeping bags and I got this as a spare but I wanted to try it out and was very pleasantly surprised! Not only was the stitching and zipper high quality, but it retained heat much better than I expected for how light it is. 10/10 would recommend to anyone in need of a sleeping bag! Read more

BoVerified purchase
★★★★

Very warm, wish it had a good way to vent.

Very warm, just wish it had a few vents in it. I'm 4'10 so trying to find something with out too much extra space is a struggle. I recently used this on a camping trip where it got to the low 30s at night on a humid mountain. I was honestly afraid I was going to be super cold but instead I sweat the entire night. I ended up unzipping the side but that left me a little too cold. If this thing had a 2 way zipper so you could just do a small portion or some vents it would have been perfect! Overall I guess id rather be too warm than too cold so can't complain too much. Read more

ElizabethVerified purchase
★★★★★

Soft and cozy, yet lightweight

Excellent sleeping bag, rolls up very small, ideal for backpacking. It’s also very fluffy Read more

ZitaVerified purchase
★★★★★

Soft, warm, comfy and rolls up easily back into provided storage bag

Only used once so far. Super comfy and kept me warm in 36F tent camping. Very soft and rolls up easily back into provided storage sack. Read more

German car nutVerified purchase
★★★★★

Excellent product.

I've had this bag in very cold ❄️ weather and stayed warm,kelty is a good brand. Read more

clifton errol millerVerified purchase
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