Therm-a-Rest Boost 650 20F/-6C Sleeping Bag
$299.95
Description
Boost 650 20F offers semi-rectangular sleeping room with a WarmZip adjustment that draws the shape closer around the body. Its comfort rating is 32°F, not the 20°F nominal lower-limit figure.
Specifications
Boost 650 20F/-6C Sleeping Bag Short specs
- Size: S
- Color: Morning Blue
- Weight (g): 1021
- Length (in): 73
- Width (in): 31.5
- Height (in): 4.5
- Materials: Nylon, Down Fill
- Fits user height: 66 in (168 cm)
Included: Therm-a-Rest Boost 650 20F/-6C Sleeping Bag, Short
- Storage Bag
- Compression Sack
Boost 650 20F/-6C Sleeping Bag Short Wide specs
- Size: SW
- Color: Morning Blue
- Weight (g): 1274
- Length (in): 73
- Width (in): 37.5
- Height (in): 4.5
- Materials: Nylon, Down Fill
- Fits user height: 66 in (168 cm)
Included: Therm-a-Rest Boost 650 20F/-6C Sleeping Bag, Short Wide
- Storage Bag
- Compression Sack
Boost 650 20F/-6C Sleeping Bag Regular specs
- Size: R
- Color: Morning Blue
- Weight (g): 1205
- Length (in): 80
- Width (in): 32
- Height (in): 4.5
- Materials: Nylon, Down Fill
- Fits user height: 72 in (183 cm)
Included: Therm-a-Rest Boost 650 20F/-6C Sleeping Bag, Regular
- Storage Bag
- Compression Sack
Boost 650 20F/-6C Sleeping Bag Regular Wide specs
- Size: RW
- Color: Morning Blue
- Weight (g): 1515
- Length (in): 80
- Width (in): 38
- Height (in): 4.5
- Materials: Nylon, Down Fill
- Fits user height: 72 in (183 cm)
Included: Therm-a-Rest Boost 650 20F/-6C Sleeping Bag, Regular Wide
- Storage Bag
- Compression Sack
Boost 650 20F/-6C Sleeping Bag Long specs
- Size: L
- Color: Morning Blue
- Weight (g): 1398
- Length (in): 85
- Width (in): 32.5
- Height (in): 4.5
- Materials: Nylon, Down Fill
- Fits user height: 78 in (198 cm)
Included: Therm-a-Rest Boost 650 20F/-6C Sleeping Bag, Long
- Storage Bag
- Compression Sack
Boost 650 20F/-6C Sleeping Bag Long Wide specs
- Size: LW
- Color: Morning Blue
- Weight (g): 1737
- Length (in): 85
- Width (in): 38.5
- Height (in): 4.5
- Materials: Nylon, Down Fill
- Fits user height: 78 in (198 cm)
Included: Therm-a-Rest Boost 650 20F/-6C Sleeping Bag, Long Wide
- Storage Bag
- Compression Sack
Insulation ratings
- EN Comfort / 32 F (0 C)
- EN Limit / 20 F (-6 C)
Comfort and lower-limit ratings are different. For this model, Therm-a-Rest lists EN Comfort 32 F (0 C) and EN Limit 20 F (-6 C). Match the entire sleep system to your conditions and personal needs.
Buying guide
Questions
What does WarmZip change besides the bag's shape?
Closing the central zipper reduces internal space and brings insulation closer. Therm-a-Rest's additional-warmth claim is not a separate EN/ISO rating or a reason to subtract 10°F from the listed comfort rating.
What does each of the three EN figures on Boost 650 20F tell me?
Therm-a-Rest lists Comfort 32 F (0 C), Limit 20 F (-6 C) and Extreme -9 F (-23 C) for every size. Plan your nights around the 32 F comfort figure; the two lower numbers are not comfort ratings.