Survive Outdoors Longer 90% Emergency Bivvy - Comes with Survival Whistle & Tinder Paracord Drawstring - Add to Emergency Kit & Hiking Gear - Waterproof, Windproof & Tear-Resistant

If you plan on using this, you’re probably using it wrong. It’s basically a space blanket shaped like a bivy sack. It’s not durable. It is waterproof, and it will add a few degrees to your sleep system. It’s not breathable.I carried it when backpacking with a tarp instead of a tent. When I got caught in a thunderstorm, and lost one of my stakes in the chaos, this kept me warm and dry under my inadequate tarp setup. I managed a few more uses on cold nights after that.It weighs almost nothing. It works in a pinch.

I got caught in a straight line wind while riding unprotected on a 400 mile bike trek. I hunkered down and wrapped up me and my technology…placed my bike underneath. I was sheltered from storm! I dried the Bivi but couldn’t pack it back, properly, in sack. I have it wrapped up with a rubber band.

It finally happened after decades of climbing, I got into trouble climbing a multi pitch route. The weather changed, I dropped essential gear in the cold and crazy wind. I was unable to proceed, hypothermia set in. I had to call mountain rescue to save my ass before I froze. I brought a plastic ground sheet (polycro) as it's so light, but it was shredded in my miserable hanging belay. I bought this the next day. If I had one of these to throw in my pack, I would have been toasty. My fingers are mostly fine, but one is nerved damaged. I expect it'll heal in time. Get one, no get two and give one to you climbing partner!!

Took this on a canyoneering trip in Zion in a wet canyon. Halfway through the canyon you camp. I got this to wrap around my sleeping bag. It tire in one place. I can still use it again. Maybe I'll just need to put some duct tape on it. But the fact is that it ripped.

Really compact, effect for back pack hunting

I like this product, it's good quality. I have not use it yet, but looks like it would work great.

I tried this blanket recently in a cold theater - it was immediately very warm .

Nice product very spacious and good quality. Material is tear resistant but not tear prouf so still be careful when taking it out as your thumb might poke a hole in it while flating it out. Expect to use for 3-4 times before you have to replace.

Note this is the thin foil blanket, not alternative / thicker bivvy option. Packs small and great to have in backpack for emergency situations. Orange drawstring bag. Not single use but tricky to re-fold neatly once opened!