Sea to Summit Thermolite Reactor Sleeping Bag Liner

Color: Black
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Along with extending the life of your sleeping bag, the Sea to Summit Thermolite Reactor sleeping bag liner adds 14°F of warmth.

  • Features

    • Thermolite® insulation is a hollow-core fiber that provides extraordinary warmth for its weight and remains extremely breathable
    • It's very comfortable, more compact and warmer for its weight than fleece liners
    • Adds up to 14°F (8°C) of warmth to a sleeping bag, or can be used on its own as the ideal warm-weather bag
    • Thin drawcord with tiny cord-lock around the hood
    • Very light and compact


    View all Sea to Summit Sleeping Bag Liners
  • Technical Specs

    Best Use


    Sleeping Bag Shape


    Added Warmth (F)

    Up to 15 degrees

    Added Warmth (C)

    Up to 8 degrees

    Stuff Sack Size

    3 x 5 inches




    82 x 35 inches


    8.1 ounces

  • Reviews
    195 reviews with an average rating of 4.5 out of 5 stars

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