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Adventure Medical Kits Thermo-Lite II Single Bivvy
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Adventure Medical Kits Thermo-Lite II Single Bivvy

Item # 750938

$29.95

Item qualifies for annual
REI Member Refund (typically 10%)

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With luck you'll never have to spend an unplanned night out, but it's a good idea to be prepared with this emergency shelter.

  • Bivy returns up to 80% of your body heat thanks to a nonconductive, vaporized-aluminum layer sandwiched between layers of polyolefin
  • Thermo-Lite II material on the bottom of the bivy has the same features as the original Thermo-Lite, but is 30 percent stronger for added durability
  • Nonwoven, tear-resistant fabric creates a substantial, weather-resistant cocoon that won't rip or blow away in high winds
  • Easy In, Easy Out Entry® makes this bivy sack easier to use than a simple sheet of reflective material
  • Adjustable side opening and foot vent lets you regulate the heat inside, so you needn't be too warm or clammy
  • Extremely compact and light, it packs into its own small stuff sack; packed size is approximately 7 x 4 inches, so it fits easily in your backpack
  • Hand washable and reusable; can be repaired with duct tape if necessary

Made in USA.

Item 750938

Adventure Medical Kits Thermo-Lite II Single Bivvy Specs

Specification

Description

Weight6.9 ounces
Dimensions84 x 36 inches

Adventure Medical Kits Thermo-Lite II Single Bivvy Customer Reviews

REVIEW SNAPSHOT®

by PowerReviews
Adventure Medical Thermo-Lite II Single Bivvy
 
2.8

(based on 4 reviews)

50%

of respondents would recommend this to a friend.

Pros

  • Lightweight (3)
  • Stows easily (3)

Cons

    Best Uses

      • Reviewer Profile:
      • Avid adventurer (3)
      • What Is Your Gear Style:
      • Minimalist (3)

      Reviewed by 4 customers

      Sort by

      Displaying reviews 1-4

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      (12 of 27 customers found this review helpful)

       
      3.0

      It keeps your warm

      By orrey45

      from Houston, Tx

      About Me Casual/ Recreational

      Site Member

      Pros

      • Clear Instuctions
      • Easy To Pack
      • Effective
      • Simple To Use
      • Small and Light

      Cons

      • Hard to Enter and Exit
      • Not Breathable

      Best Uses

      • Backcountry Camping
      • Emergency use
      • Winter Conditions

      Comments about Adventure Medical Thermo-Lite II Single Bivvy:

      I bought this bivvy to be a light weight replacement to my sleeping bag. I tested this out last weekend on a short weekend hike and while it was nice because it is small and light the performance was not desired. The bag will keep you plenty warm it does not breathe and large amounts of condensation built up. Waking up soaking wet in cold weather is not fun. This bag would be good for emergencies though.

      • What Is Your Gear Style:
      • Comfort Driven

      (9 of 12 customers found this review helpful)

       
      5.0

      It does what it's meant to

      By Oregon Trails

      from Bend Oregon

      About Me Avid Adventurer

      Site Member

      Pros

      • Lightweight
      • Stows Easily
      • Warm

      Cons

      • Condensation

      Best Uses

      • Emergency
      • Ground sheet

      Comments about Adventure Medical Thermo-Lite II Single Bivvy:

      I have packed this bivy on every day hike and backcountry skiing trip I have done for the past two years. It offers emergency shelter and warmth in case of a backcountry emergency requiring a long wait for help. For its size and weight I dont think it can be beat for this use. Dont bother with the cheapo $2 space blankets, they provide little insulation and shred too easily.I also have used this bivy as a ground sheet multiple times. I use a silnylon tarp, and throw this little bivy under my sleeping pad. It has never soaked through. I have used it in conjunction with my tarp in the snow as well. It provides more insulation as a ground sheet than tyvek, and in case of extremely low temperatures, you can hop inside it in the middle of the night. Expect condensation inside of it in the morning. Keep that in mind if you use a down winter bag.It held up well for about a year before the side opening tore open a few inches. It was easily field repaired with duct tape, and the repair has help up for over a year. This is meant to be an EMERGENCY device. Understand its limitations and you'll be very happy with it.

      • Gift:
      • No
      • What Is Your Gear Style:
      • Minimalist

      (6 of 8 customers found this review helpful)

       
      1.0

      Junk

      By unrealtrip

      from Sacramento, CA

      About Me Avid Adventurer

      Site Member

      Pros

      • Lightweight
      • Stows Easily

      Cons

      • Not Warm Enough
      • Tears with ease
      • Wet

      Best Uses

        Comments about Adventure Medical Thermo-Lite II Single Bivvy:

        Even for someone who runs on as minimal amount of gear as possible I found this thing completely worthless, and how it is possible for the other reviewer to give something like this 5 stars is absolutely beyond me. This product is designed for emergency use to keep you warm in a survival situation, the fact that it might double as a groundsheet is irrelevant, and with that in mind my low rating comes from having used it in a mock survival situation with my search and rescue unit for its actual intended purpose.

        Stuck outside overnight in mid to high 30's temperatures with only a survival shelter and this bivvy, I found that I would have been better off rolling myself up in my tarp with a layer of grass lining acting as an insulator. The bivvy tore with ease, the velcro had a habit of popping open and aside from the one benefit of providing a minimal amount of warmth for a period of time, the trade-off was to find myself soaking wet, something which you want to avoid in a true survival situation. Should you need to get out of the bivvy, you will now find yourself cold *and* wet, and worse off than before as you attempt to reenter the sack without ripping it apart.

        I realize any product along these lines will have similar limitations, I just found that this in particular did not meet my expectations in any way and I'm glad that I tested it out in a mock survival test rather than having found out how useless it was in an actual time of need.

        There are plenty of ways to keep warm in a survival situation and this bivvy is not one of them; if anything, it puts you at greater risk because in addition to being cold, you will now be soaking wet.

        • Gift:
        • No
        • What Is Your Gear Style:
        • Minimalist

        (3 of 5 customers found this review helpful)

         
        2.0

        Ripped the first time I used it.

        By robertmyers

        from Houston, TX.

        About Me Avid Adventurer

        Pros

        • Lightweight
        • Stows Easily
        • Warm

        Cons

          Best Uses

            Comments about Adventure Medical Thermo-Lite II Single Bivvy:

            tore at the side opening bottom below the reinforcement.

            • What Is Your Gear Style:
            • Minimalist

            Displaying reviews 1-4

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