Therm-A-Rest Navis 25-45 Degree Sleep System

  • Our Price: $249.95


New for 2013! Alpinists and thru-hikers reduce weight and maximize performance with a system approach to insulation. The Navis sleeping bag is designed specifically for backcountry ounce counters who want to save weight by wearing their insulated jacket at night. Sewn-through construction in the upper half of the bag layers easily over a belay parka or a lightweight pullover. The Navis sleeping bag performs in a wide range of temperatures, from 25F to 45F (-4C to 7C), depending on the jacket it's combined with.

  • System-Oriented: Hybrid Construction works with your insulated jacket to reduce overall weight and bulk.
  • Secure Attachment: SynergyLink Connectors provide more benefit from your mattress.
  • Versatile: Combine the Navis with any insulated jacket for a Variable Temperature Rating.
  • Carry Less: Lightweight, 750+ fill goose down offers compressible warmth.


Trapezoidal Footbox, Storage & Stuff Sack



Weight 1 lbs 5 oz / 610 g
Fits 5 ft 10 in / 178 cm
Girth, Shoulder 62 in / 158 cm
Girth, Hip 58 in / 152 cm
Girth, Foot box 40 in / 102 cm
Width 30 in / 76 cm
Length 68 in / 173 cm
Packed dimension 7 x 12 in / 8 Liters in
Fill 750+ Goose Down
Fill weight 8 oz / 235 g
Shell fabric 30D Nylon Ripstop with DWR
Liner fabric 30D Nylon

Argo Navis, the Argonaut's ship, was the largest constellation in the night sky.

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