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Mylar emergency bivy
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Thomas Burns
(nerdboy52) - MLife

Locale: "Alas, poor Yogi.I knew him well."
Mylar emergency bivy on 05/01/2011 14:43:03 MDT Print View

I carry the Heetsheets version (3.5 oz), which I use as a backpack liner and ground cloth. It's also useful to cover up the bottom half of my sleeping bag to keep off the rain. I can thus huddle down to the bottom of my tarp or tarptent to keep the rain off my head and upper torso. (I've never used it to cover the whole bag so that too much internal moisture will not accumulate.)

Oh, yes, and I can also use it inside my bag if my sleeping bag is inadequate to keep me warm.

It's tough as nails, so it can stand quite a bit of abuse even from repeated uses.

BTW, I just fold it up and put it in the knapsack when I'm not using it as a bag liner.

I've pretty much eliminated stuff sacks that way -- including the one that formerly held my shelter. Small stuff like medical supplies (what few I have of them) and personal items all go in the same cuben-fiber sack.


Edited by nerdboy52 on 05/01/2011 14:45:14 MDT.

Steven McAllister
(brooklynkayak) - MLife

Locale: Atlantic North East
Other uses on 05/26/2011 19:10:44 MDT Print View

Mylar makes a great rainskirt as well.
Many uses for an item that weighs next to nothing.

Polycryo used for storm windows has very similar properties.

I keep a sheet in my kit when I lead kayak trips. It has many uses.
I have used one as emergency shelter and/or wrap for near hypothermia situations a couple times.

obx hiker
(obxcola) - MLife

Locale: Outer Banks of North Carolina
Mylar emergency biv on 05/26/2011 19:42:49 MDT Print View

I'm thinking about cutting out a stretch about 2' x 5 ' on the top and taping or gluing in a section of one of those frogg toggs 2.8 oz emergency ponchos as a breathable top panel.

Edited by obxcola on 05/26/2011 19:43:29 MDT.