Kelty
Cosmic Synthetic 20
Best reliable warmth for budget conscious campers.
Designed for three-season backpacking, this mummy bag balances warmth and weight using advanced synthetic insulation. The soft-touch nylon shell provides durability while maintaining a comfortable feel against the skin. A spacious, natural-fit footbox ensures extra room for movement, addressing common comfort issues during long treks. With an integrated stash pocket for essentials and a PFC-free water-repellent finish, it offers reliable performance in varied outdoor conditions. This bag is an accessible choice for those seeking a dependable, compressible option that doesn't compromise on essential features or comfort during multi-day adventures in the backcountry.
$109.95
More Cosmic Options
Cosmic 20
$159.95
Cosmic Down 20
$189.95
Cosmic Synthetic 0 Degree
$139.95
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
Cosmic Synthetic 20
$109.95
Owner Satisfaction
4.5
/ 5
Category Rank
1010
/ 2020
#1010 in Sleeping Bags
Price vs Category Average
-34%
Below average
ISO Comfort Temp Rating
25
/ °F
Who it's for
- Budget-conscious campers and backpackers seeking reliable three-season warmth.
- Campers in humid climates or those prone to accidental gear wetting.
- Campers prioritizing easy cleaning or those with down allergies.
Who should skip it
- Ultralight backpackers or those with limited pack space.
- Frequent users expecting many years of peak performance.
- Warm sleepers or those in fluctuating temperatures.
Key Specs
ISO Comfort Temp Rating
25°F
ISO Limit Temp Rating
13°F
Max User Height
68 inches
Length
74 inches
Shoulder Width
30 inches
Total Weight
3.99 lbs
Insulation
CirroLoft synthetic
Shell Material
380T Nylon Taffeta
Still have a question?
Ask Hayley anything about this product before you decide.