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Sea to Summit Thermolite Reactor Sleeping Bag Liner

  • $9.00 Rental
  • $60.00 Retail
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Lightweight, Compact Warmth

Get cold in your sleeping bag? The Sea To Summit Thermolite Reactor Sleeping Bag Liner will add up to 15°F of extra warmth to your sleeping bag. It's special Thermolite technology is lighter, warmer, and more compact than fleece. It can even be used on its own as a warm weather bag!


  • More compact and warmer for its weight than fleece
  • Adds up to 15°F of warmth to a sleeping bag, or can be used on its own as a warm-weather bag


Added Warmth (F)

Up to 15 degrees

Added Warmth (C)

Up to 8.3 degrees

Stuff Sack Size

3 x 5 inches




82 x 35 inches


8.1 ounces

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