Survival Frog Tact Bivvy 2.0 Emergency Sleeping Bag w/Stuff Sack, Carabiner, Survival Whistle, ParaTinder - Compact, Lightweight, Waterproof, Reusable, Thermal Bivy Sack Cover, Shelter Kit (Orange)

You buy emergency gear thinking you’ll never actually have to use it. Last night while hiking a backcountry trail alone, I missed a turn and wound up heading in the wrong direction. By the time I realized my mistake, the sun was about to set and there was no time to double back. I was stuck in a huge boulder field and having found a relatively flat rock with a large boulder behind to have some shelter, I cut some leafy tree branches to make a pad to sleep on and hunkered down in this bivvy for the night. It was by no means a comfortable sleeping arrangement, but the bivvy kept me warm enough that I didn’t spend the entire night shivering. It saved me from a completely miserable experience - bad enough as it was, it could’ve been much worse. It was also comforting to know that if it was to start raining, the bivvy would keep me dry.I learned the hard way that while tucking your head under is nice and warm, the condensation from your breath will make the interior of the bivvy dripping wet. Crying while inside the bivvy also did not help at all. For the rest of the night I kept it wrapped around my head like a hood, leaving a hole for my face, and was still warm enough.This may look like a glorified plastic bag, but it is very tough. I spent all night tossing and turning on my bed of sticks and rocks, and in the morning could only find the tiniest of punctures where I was most rough on it. The tiny punctures didn’t seem to make the bivvy any less effective in keeping me warm. There was no damage at all to the seams. Cheap mylar will tear easily and any holes will run like a cheap pair of stockings. I chose this Tact bivvy because I wanted something tougher, and it was even tougher than I expected.Also, whether you have the orange side out or the reflective side out, it works really well to flag rescuers. I had it attached to the outside of my pack, inside out to dry the condensation off, and SAR was able to spot me easily from the air. I also couldn’t find my Fox whistle and the little one clipped to the stuff sack was surprisingly good.All in all, this >$20 purchase is some of the best money I have ever spent in my life, and everyone should have one in their pack. It’s tiny and weighs nothing and made the single biggest difference during my awful night spent lost in the backcountry.

I had an SOL Escape Lite Bivvy for a trip up a mountain in Peru. The SOL was amazing and in some cases life saving. Sturdy, easy to pack, reusable etc.I bought this Tact bivvy hoping it was a competitor to the SOL. It is NOT. It's two sturdy rescue blankets glued together.If you only have this in a crisis it might save your life. But it is not a durable product to use day in and day out, and not as warm or as comfortable or durable as the SOL Escape Lite. Disappointed, frankly. I bought the SOL after, and I can use both together as layers. But if I knew before I'd skip this one and just buy the SOL Escape or SOL Escape Lite Bivvy.

I know this isn’t meant for this but i’ve been using this around my sleeping bag at night around august-septembre and it does an awesome job. It gets so hot i end up tanking it off in the morning.

Not tested it in the field (will have to wait for spring) tested it under the tap and is waterproof,very stout piece of kit,I have several emergency sleeping bags and this one is by far the best 5 stars will be buying another

Basically it's a well-packaged survival bag.Not the thickest material, but that makes it nice and light and therefore less likely to get left at home.