Sierra Designs Synthesis 20 Degrees Sleeping Bag
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Sleeping bag Long

by albin, Verified Owner from WA, United States Written on May 24, 2025
This sleeping bag is advertised that weight is 2.56 lb but when I weigh it it shows 3.196 lb. I weight it because when I receive it I knew it is heavier like it is advertised. When you are backpacking you count every little bit of weight that you carry . It is good and warm bag but it`s a bit heavier like I expect it
Pros:
  • good , warm , with lice features
Cons:
  • heavier like I expect it
Would recommend: Yes
Was it helpful to you? Yes | No

Decent value.

by ser, Verified Owner from DE, United States Written on February 14, 2024
This is a great mummy style sleeping bag, with the added flexibility of being more roomy than a tradition mummy with the two zippers. I bought a regular size for my husband who is 6ft tall, 185lbs, and it is tight if he wants to sleep on his side. Probably should have sized up to a long, but we’ll make this one work. It’s very warm and comfortable, and stuffs amazingly small for such a warm bag.
Would recommend: Yes
Was it helpful to you? Yes | No

Great light weight, affordable backpacking sleeping bag

by ser, Verified Owner from DE, United States Written on January 4, 2024
The best compact sleeping bag I have ever owned.loved this bag very very warm
Would recommend: Yes
Was it helpful to you? Yes | No

Solid for the price and warm weather

by ser, from DE, United States Written on February 22, 2023
Overall this is a very good bag with some really nice features, double sided zippers and the foot vent. Everyone needs to remember that the 20º rating is extreme and not the Comfort temperature. I would really like a 10º bag for the temp range I camp early in the year.
Would recommend: Yes
Was it helpful to you? Yes | No
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