R-value 7.5. That number is the whole argument — this is a genuine four-season double that resists heat loss into frozen ground instead of wicking it out of you all night.
Three inches of high-rebound foam, a 3D sidewall that keeps the edges from collapsing when you sleep near them, and a built-in pump with dual valves so you're not hunting for separate gear at altitude in the dark. PVC-free waterproof fabric throughout.
Built for the long haul
- R-value 7.5 — true all-season ground insulation
- Built-in air pump, no separate equipment needed
- Dual valves for precise inflation and fast deflation
- 3" high-rebound foam with 3D sidewall construction
- PVC-free waterproof fabric
- Textured surface; storage bag included
Specifications
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Expanded size: 201 × 128 × 7.5 cm (79" × 50.4" × 3.0")
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Rolled size: 81 × 26 cm (31.9" × 10.2")
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Weight: 4.4 kg (9.7 lbs)
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R-value: 7.5
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Capacity: 2 person (double)
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Top & sidewall: 30D stretch fabric TPU
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Bottom: 190T polyester pongee TPU
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Pump: ABS
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Air nozzle: Universal, 2 valves
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Included: Inflatable outer bag + product storage bag
Specifications as published by KingCamp.