Skip to content Skip to search Skip to my account Skip to main navigation Skip to footer navigation Skip to Company Information Links
Campmor

1-888-226-7667

catalog request gift registry customer service

Gear Gurus More Links
Deal of the Day!
my cart my cart -

Sea To Summit Thermolite Reactor Extreme Mummy Liner

Item #: 83147

Our Price: $64.95

Orange


The Sea To Summit Thermolite® Reactor Extreme Mummy Liner Increases sleeping bag performance by up to 25°F (14°C) with super-insulating 110g/mý² Thermolite® fabric. Thermolite® is a hollow core fiber that provides extraordinary warmth for its weight and remains extremely breathable. Spacious design allows for a comfortable night's sleep, even when the mercury plummets. Perfect for extending the season of your sleeping bag.
  • 110g/m2 Thermolite® fabric construction throughout
  • Adds up 25°F (14°C) to warmth to a sleeping bag
  • Mummy shape with a box foot
  • Draw cord hood with mini cord lock
  • Packs into its own Ultra-Sil™ stuff sack
  • Size: Width: 36" (90 cm) / Length: 84" (210 cm)
  • Weight: 14 oz. / 399 g

REVIEW SNAPSHOT®

by PowerReviews
SeaToSummitSea To Summit Thermolite Reactor Extreme Mummy Liner
 
3.3

(based on 4 reviews)

50%

of respondents would recommend this to a friend.

Pros

  • Compact (4)
  • Easy to pack (4)
  • Lightweight (3)

Cons

    Best Uses

    • Backcountry camping (3)
      • Reviewer Profile:
      • Casual/ recreational (4)
      • Was this a gift?:
      • No (4)

    Reviewed by 4 customers

    Sort by

    Displaying reviews 1-4

    Back to top

    (0 of 2 customers found this review helpful)

     
    3.0

    Looks like quality material

    By Streetpreacher

    from Troutville, VA.

    About Me Casual/ Recreational

    See all my reviews

    Verified Buyer

    Pros

    • Compact
    • Durable
    • Easy to pack

    Cons

      Best Uses

      • Survival
      • Winter Conditions

      Comments about SeaToSummit Sea To Summit Thermolite Reactor Extreme Mummy Liner:

      Have not used this yet because the bag I bought has been sufficient so far.

      • What Is Your Gear Style:
      • Comfort Driven
      • Was this a gift?:
      • No

      Comment on this review

      (2 of 2 customers found this review helpful)

       
      3.0

      Just another liner

      By SeldomSeenSmith

      from Saukville, WI.

      About Me Casual/ Recreational

      See all my reviews

      Verified Buyer

      Pros

      • Compact
      • Easy to pack
      • Lightweight

      Cons

      • Too thin

      Best Uses

      • Backcountry Camping

      Comments about SeaToSummit Sea To Summit Thermolite Reactor Extreme Mummy Liner:

      Tried it out on a winter camoing trip with my brother. It added no noticable warmth. Seemed like a good liner for liner sake. Bottom line is, that if you are buying it to make your bag warmer -don't-. If you need a liner, it's alright.

      • Was this a gift?:
      • No

      Comment on this review

      (0 of 1 customers found this review helpful)

       
      3.0

      Glad i got it on sale

      By aikobarron

      from Northport, NY

      About Me Casual/ Recreational

      See all my reviews

      Verified Buyer

      Pros

      • Comfortable
      • Compact
      • Easy to pack
      • Lightweight

      Cons

        Best Uses

        • Backcountry Camping
        • Campgrounds
        • Survival

        Comments about SeaToSummit Sea To Summit Thermolite Reactor Extreme Mummy Liner:

        this item works well enough, but the price is far too high for what you get. if i didnt get this on sale, i would have been pretty upset. there are other similar items that work just as well, and are just abt as light & compact at a much lower price. maybe that's why it was on sale, huh?

        • What Is Your Gear Style:
        • Comfort Driven
        • Was this a gift?:
        • No

        Comment on this review

        (2 of 3 customers found this review helpful)

         
        4.0

        Packs well, and is comfortable as liner

        By Asheville hiker

        from Asheville, NC

        About Me Casual/ Recreational

        Verified Buyer

        Pros

        • Comfortable
        • Compact
        • Durable
        • Easy to pack
        • Lightweight

        Cons

          Best Uses

          • Backcountry Camping
          • Campgrounds
          • Winter Conditions

          Comments about SeaToSummit Sea To Summit Thermolite Reactor Extreme Mummy Liner:

          The liner is being used to improve the thermal value of my 4 season bag during colder than expected conditions. It fits the bag well, is comfortable, and pack in a compact bag that is light.

          • What Is Your Gear Style:
          • Minimalist
          • Was this a gift?:
          • No

          Comment on this review

          Displaying reviews 1-4

          Back to top

          Do you have questions about this product?

          get answers from real customers and in-house experts with AnswerBox.

          5 Questions | 5 Answers
          Displaying questions 1-5
          • Q:

            which side is the zipper on?
            Asked on 3/26/2013 by believer from New York

            1 answer

            • Staff Reviewer

              A:

              There is no sipper on this liner. You just shimmy into it.

              Answered on 3/27/2013 by Steve from Campmor
          • Q:

            How is this different from a vapor barrier liner, or is it the same thing by a different company?
            Asked on 11/28/2012 by Debbie from Miami Fl.

            1 answer

            • Staff Reviewer

              A:

              The Sea To Summit Thermolite Reactor Extreme Mummy Liner is a fleece material. A standard VBL is a coated nylon sack.

              Answered on 11/30/2012 by Steve from Campmor
          • Q:

            What is the pack size of the stuff sack with the liner inside the stuff sack?
            Asked on 3/25/2012 by Anonymous

            1 answer

            • Staff Reviewer

              A:

              The pack size with the stuff sack is 4 inches diameter, 7.25 inches long.

              Answered on 3/27/2012 by Bob from Campmor
          • Q:

            used by itself what is the temp rating
            Asked on 2/3/2012 by frank from arizona

            1 answer

            • Staff Reviewer

              A:

              Not meant to be used by itself. If used by itself, then only for summer nights.

              Answered on 2/8/2012 by Anonymous
          • Q:

            I see the size of this bag liner is W36 x L84. What is the girth measurment ??
            Asked on 11/21/2011 by Joe from Lombard, IL

            1 answer

            • Staff Reviewer

              A:

              The girth measurement is 32 inches.

              Answered on 11/22/2011 by Anonymous
          Displaying questions 1-5

          Do you have a question about this product? 

          Would these items help you out on your next adventure?

          Questions?


          8am - 10pm ET, Monday through Friday
          9am to 7pm ET, Saturday

          or call us at (800) 525-4784
           
          More Ways To Shop
          Shop By Brand
          The best names in outdoor equipment

          Shop Specials
          Check out the latest price breaks.

          Shop TrailMail
          Check out the newest edition of our TrailMail e-mail.
          From The Gear Gurus
          Tent Info & FAQ
          Quick look up for your tent information.

          Pack Care & Fit
          See which pack is meant for you.

          Sleeping Bag Insulation & Care
          Information on how to care for your sleeping bag.

          Manufacturer's Information
          Browse our manufacturer's information.

          Need Assistance?
          Live Chat
          Need immediate assistance?

          Customer Service
          1-800-525-4784

          Order Tracking
          Where is your order?

          Company Information
          Order now via phone: 1-888-226-7667

          Find Campmor On
           
                     
          Additional Information
          10.86.145.7, spd09comm01s