Kelty
Cosmic Synthetic 20
Best synthetic sleeping bag for budget conscious campers.
Designed for three-season backpacking, this mummy bag balances warmth and weight using advanced synthetic insulation. The soft-touch shell and spacious footbox prioritize comfort during long nights on the trail, while the compressible design ensures it packs down efficiently for your pack. Featuring a dedicated stash pocket for essentials and a PFC-free water-resistant finish, it provides reliable performance in varied outdoor conditions. This bag is an ideal choice for hikers seeking a dependable, easy-to-maintain sleep system that offers excellent value without compromising on essential features or durability for backcountry adventures.
$109.95
More Cosmic Options
Cosmic 20
$159.95
Cosmic Down 20
$189.95
Cosmic Synthetic 0 Degree
$139.95
Cosmic Synthetic 20
$109.95
Cosmic 20 Degree Sleeping Bag
$159.95
Cosmic Ultra 20 Degree
$269.95
Cosmic
$314.95
Cosmic 20 Sleeping Bag (Long)
$109.95
Cosmic Synthetic 20 Degree
$119.95
Cosmic 40
$119.95
Cosmic 20 Sleeping Bag
$118.22
Cosmic Ultra 0°F Sleeping Bag
$219.95
Cosmic Ultra 800 DriDown Sleeping Bag
$184.48
Cosmic 0 Synthetic Sleeping Bag
$129.95
Cosmic 20 Sleeping Bag
$118.22
Cosmic Ultra 0°F
$245.97
Kelty Cosmic 20
$169.99
Kelty Cosmic Synthetic 0 Degree Sleeping Bag
$166.00
Kelty Cosmic Down 20
$189.95
Kelty Cosmic Ultra 0
$369.95
Cosmic Synthetic 40 Degree
$99.95
Owner Satisfaction
4.5
/ 5
Category Rank
1010
/ 2020
#1010 in Sleeping Bags
Price vs Category Average
-34%
Below average
ISO Temp Rating (Limit)
226
/ °F / -°C
Who it's for
- Campers and backpackers facing humid or potentially rainy environments.
- Budget-conscious adventurers seeking a versatile sleeping bag for varied conditions.
- Outdoor enthusiasts prioritizing longevity and straightforward gear maintenance.
- Sleepers who value comfort and ease of use in their outdoor accommodations.
Who should skip it
- Ultralight backpackers and those with limited pack space.
- Long-term users expecting consistent warmth performance over many seasons.
- Performance-driven individuals prioritizing minimal weight for maximum warmth.
Key Specs
ISO Temp Rating (Limit)
22°F / -6°C
Total Weight
2.83 lbs
Insulation
CirroLoft Synthetic
Shell Material
380T Nylon Taffeta
Lining Material
50D 300T Poly Taffeta
Max User Height
78 inches
Has Stash Pocket
Yes
Water Resistant
Yes
Still have a question?
Ask Hayley anything about this product before you decide.