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Sea to Summit Reactor Thermolite Mummy Liner



  • Traps insulating air to increase warmth of a sleeping bag by up to 14°F /8°C
  • Stretchy, ThermoliteR fabric is incredibly comfortable.
  • Lighter weight and more packable than fleece.
  • Technical mummy-shape with drawstring hood.
  • Easy care – machine wash with no special soap is needed. Avoid fabric softeners and dryer sheets.
  • Keeps sleeping bag clean.
  • Packs into its own Ultra-Sil stuff sack.


Technical Specs:

  • Weight: 248 g
  • Length: 208 cm
  • Packed Size 15 x 11 cm
  • Compressed Volume: 1.0 Liters
  • Added Warmth: Up to 14°F /8°C
  • Comes With: Ultra-Sil stuff sack
  • Materials: Thermolite Polyester Fabric
  • Shape: Mummy