Adventure Medical Kits Heatsheets Emergency Bivvy
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Don't get left out in the cold. The Adventure Medical Heatsheets® Emergency Bivvy reflects up to 90% of your body's heat back to you.
Shop similar products- Bright orange exterior is easy to spot, even in bad weather
- Heatsheets material is composed of vacuum-metalized polyethylene, providing durable yet quiet protection
- Bivvy provides protection from water and wind; it's sized to shelter 1 adult
- Comes with its own nylon stuff sack for convenient stowage
Made in USA.
View all Adventure Medical Kits Emergency Supplies| Best Use | Backpacking |
|---|---|
| Dimensions | 84 x 36 inches |
| Weight | 3.8 ounces |
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saved me from the cold in Joshua Tree
I just came back from a weekend in Joshua Tree National Park. We were only supposed to be out for a long day-hike but it turned into an unplanned overnight in the cold rocks. It got down to the mid 30's F at night and this bivvy kept us warm from the cold night air/wind. It developed a ton of condensation inside the bag but it was a toss up between being warm and moist inside the bag or cold and dry outside. There were nine of us out there and only one of these bivvy's and a couple space blankets...we took turns. The blanket tore quickly and kept flying up in the wind. But this bivvy doesn't lose heat to the wind and won't tear as easily as those blankets. I think everyone in the group is gonna go buy one of these for their daypack now.
Perfect Performance
The bivy performed to specifications in a 31 degree river bottom in Northern California. I used it to maintain body temperature for an injured teammate during a Search and Rescue mission. The bivy exceeded my expectations in keeping my teammate warm during the early morning hours while we waited for an aerial medivac after dawn.
A must need for all hikers.
I have used this on many hunting trips, backpacking trips, and survival situations. All I have to say is that you need one.... It keeps you warm, but it builds up with a lot of condensation. And why did I use it on a backpacking trip, well I am a minimalist and I pack really light, like 5 pounds weight light. So if you want or need to pack light send me a message and I will tell you how or send you a video of me showing you how.
Always in my pack
Took this up to the summit of Fuji in September because I knew someone in my group would need it. Sure enough one did. It effectively provides a microclimate which is a few degrees warmer than ambient. It does this by reducing conductive, evaporative, and radiated heat loss. The picture of the bivy in its stuff sack does not show the scale, and the packaged dimensions are not listed. It actually rolls up to the size of a tangerine and fits in the palm of your hand. This is always in my pack.
Great product but with one flaw
I bought this emergency bivvy to carry with me on all my backpacking trips in case of a real emergency or to cover my sleeping bag with when I travel without a tent. I personally have never had to use it in either situation but my backpacking companion wanted to see what it was like on our last backpacking trip in the Tahoe National forest at the end of summer. He slept inside it with my thermolite sleeping bag liner (to add a layer of separation between him and the bivvy material). Although he said it kept him decently warm, a lot of water condensation formed inside the bivvy which got the liner wet and made it uncomfortable. I don't know if anyone else has experienced this, which is a definite drawback, but I still carry it with me because its much better than nothing or the typical space blanket in an emergency.
It Worked, But Delaminated Afterwards
The bivy works wonders in cold weather climates. better to use inside a sleeping bag than on the outside, due to tremendous condensation buildup. Beware that storing the bivy with moisture inside will delaminate the aluminized coating, and render it useless. So overall good average product, with durability care issues.
Makes for a warm unplanned winter bivy
As night began to set in we were forced to bail off the East Ridge of Mt. Bancroft in full winter conditions. We safely reached our gear stash which had some advanced bivy gear including a light 2 person tent, a jetboil, and some food. Though darkness, cold, and 40mph winds surrounded us we decided to get down as low as we could and possibly make it back to the truck. A few hours later and overwhelmed by fatigue we were forced to bivy. The three of us crawled into the tent and used our packs, rope, and gear as ground insulation. I had with me my emergency bivy which i promptly crawled into while they shared a regular emergency blanket. I don't remember the rest of the night because of the quality of sleep the bivy allowed, but my partners tell that the spent the night shivering barely sleeping a wink. The only complaint I had about the emergency bivy was that it was very wet inside it, but I suppose being warm and wet isn't as bad as spending the night shivering and dry.
Good enough for the U.S. Army Infantry!
My family always has one with us in any outdoor situation. I have used shelters like this in emergency situations twice. Once to help a guy with a broken leg stay out of shock and once to keep warm in in a freak ice storm. We used shelters just like this in the Infantry as sleeping bags along with our Ranger blankets to sleep in some pretty nasty weather. We made it OK and that proves to me their worth! My question to anyone is: why do you not have one?