Kelty Cosmic Synthetic 40 Deg Sleeping Bag
SKU: 36656250338

Kelty Cosmic Synthetic 40 Deg Sleeping Bag

Sale price$175.95 Regular price$195.50
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

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Description

Kelty Cosmic Synthetic 40 Deg Sleeping BagThe Kelty Cosmic Synthetic 40 Deg Sleeping Bag Experience the perfect balance of lightweight design and warmth with the Kelty Cosmic Synthetic 40 Sleeping Bag. Designed for backpackers seeking comfort without the added weight, this mummy bag is your ideal companion for three season adventures. Crafted with CirroLoft synthetic insulation, this sleeping bag offers exceptional warmth in a compressible package. The Cosmic Synthetic 40 features a spacious

The Kelty Cosmic Synthetic 40 Deg Sleeping Bag

Experience the perfect balance of lightweight design and warmth with the Kelty Cosmic Synthetic 40 Sleeping Bag. Designed for backpackers seeking comfort without the added weight, this mummy bag is your ideal companion for three-season adventures. Crafted with CirroLoft synthetic insulation, this sleeping bag offers exceptional warmth in a compressible package.

The Cosmic Synthetic 40 features a spacious footbox for extra wiggle room, ensuring a natural fit for a comfortable night's sleep. Constructed with environmentally friendly PFC-Free DWR and a durable nylon taffeta shell, this sleeping bag is both soft to the touch and built to last. Plus, a convenient stash pocket allows you to keep essentials like your headlamp or phone within reach.

Specifications:

  • Regular ISO Temp Rating (Comfort): 37°C / 3°C
  • ISO Temp Rating (Limit): 27°C / -3°C
  • Fits to: 6' / 183 cm
  • Length: 78.5" / 198 cm
  • Shoulder Width: 31" / 78.5 cm
  • Fill Weight: 24 oz. / 0.68 kg
  • Total Weight: 2.36 lb. / 1.07 kg
  • Stuffed Size: 15" x 8.5" / 38 x 22 cm
  • Long ISO Temp Rating (Comfort): 37°C / 3°C
  • ISO Temp Rating (Limit): 27°C / -3°C
  • Fits to: 6' 6" / 198 cm
  • Length: 84.5" / 213 cm
  • Shoulder Width: 32" / 81 cm
  • Fill Weight: 26.5 oz / 0.75 kg
  • Total Weight: 2.68 lb. / 1.22 kg
  • Stuffed Size: 15 x 8.5 in / 38 x 22 cm

Constructed with CirroLoft insulation and a 380T Nylon Taffeta shell, the Kelty Cosmic Synthetic 40 Sleeping Bag offers a winning combination of performance and durability. Whether you're embarking on a weekend hike or a multi-day trek, this sleeping bag is your ticket to a restful night under the stars.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 36656250338

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Verified Purchase
Kana M. Golic
Chelsea, US
★★★★★ 5
Stylish, light (laptop, phone, notebook & pen) +
Color: Upgrade-apricot, Size: 15.6 Inch, Color: Upgrade-apricot, Size: 15.6 Inch
Perfect for work! I use it for laptop, charger and few items necessary at work. I have a few blocks to walk from parking to work location and this bag has replaced last backpack and purse. Much easier to carry one item than two or more. Plus, it has enough room if you need to use it for clothes and toiletries (road-trip) or carry-on.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 12, 2026
B
Verified Purchase
Brigs
Charlottesville, US
★★★★★ 4
Good quality
Color: Regular-light Pink, Size: 14 Inch
Good quality and value for your money. The fabric is soft and the right storage capacity for my 14” laptop!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 13, 2026
C
Verified Purchase
Carol
Belleville, US
★★★★★ 5
Great value
Color: Upgrade-champagne Brown, Size: 17.3 Inch
Perfect backpack for traveling. Love how it looks, the compartments are great. Easy to store for your next travels.
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Reviewed in the United States on March 8, 2026
Z
Verified Purchase
Zamira Gonzalez
Birmingham, US
★★★★★ 5
Stylish, spacious, and perfect for travel
Color: Upgrade-apricot, Size: 16 Inch
This backpack is well-made and very practical for travel. It offers plenty of space, well-organized compartments, and feels comfortable to carry even for long periods. The design is sleek and modern, making it suitable for both travel and daily use. Great quality for the price.
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Reviewed in the United States on January 31, 2026
A
Verified Purchase
Alberto Gomez
Charlottesville, US
★★★★★ 5
Great quality and very practical
Color: Upgrade-apricot, Size: 16 Inch, Color: Upgrade-apricot, Size: 16 Inch
I’m very happy with this backpack. The material feels sturdy and well-made, with a smooth finish that looks elegant and easy to clean. The size is perfect—not too big or bulky, but still spacious enough to carry everything I need. The stitching and zippers feel strong and reliable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 20, 2026

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