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THERMAREST Space Cowboy™ 45F/7C Sleeping Bag

  • Brand: Thermarest
  • Model Code: 11389
  • Availability: 10

The Space Cowboy sleeping bag welcomes the idea of sleeping out under the stars with the worry-free warmth of synthetic eraLoft™ insulation. Its hollow fibers allow it to retain warmth even when wet—shrugging off morning dew and drying out super fast. Weighing less than two pounds and with a comfort rating of 45F/7C, you’ll be plenty warm all summer, whether you’re road tripping or heading deep into the backcountry. Shell and liner are made of a light and soft, GRS-certified 100% recycled nylon and an anti-snag YKK® zipper keeps them free of accidental tears. For optimal efficiency SynergyLink™ Connectors mate the bag to your sleeping pad, preventing drafts and cold spots. The precision-tuned fit makes sure you have the space you need, while eliminating unnecessary drafts and weight.

  • Fill material – eraLoft Polyester Hollow Fiber
  • Shell fabric – 100% Recycled Nylon RipStop w/ DWR
  • Lining fabric – 100% Recycled Nylon RipStop


  Small Regular Long
Width 28.5 in 31 in 32.5 in
Length 73 in 80 in 85 in
Girth, Shoulder 57 in 62 in 65 in
Girth, Hip 56 in 57 in 58 in
Girth, Foot box 44 in 46 in 51 in
Packed dimension 8 x 10 in 8 x 10 in 8 x 10 in



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