A must have if you like to hike or camp to keep in your pack for emergency use!
OVERALL: I found the blankets to be warm for their weight and surprisingly easy to re-pack (I fold mine into a strip, fold it up, and finish with a half roll). I spent about 10 minutes in 40 degree weather standing with the bag on and went from uncomfortably cold to just fine. It was too warm to sleep in a house heated to 70 degrees. I am not sure how one would make one of these into a tent (as pictured) or a poncho (as claimed) unless it was cut up but that's not really the purpose anyway. I like that, unlike the famous chrome emergency blanket, this is already a bag.
I recently got lost for a night in Yosemite returning from climbing Half Dome. Thankfully I had one of these in my daypack. I hunkered down by a big Redwood tree and pulled to bag over my body and head and piled pine needles over myself. Temps probably were below 40F. The bag was sufficiently long and strong and didn’t puncture in any significant way. I lived through the night without getting too cold. I found help the next day. The photo is of the actual bag I used. Thanks to the people who made this bag!!!
I bought these to have in an emergency. and two for one, I couldn't pass these up for this price. I wrote this review to make sure these emergency sleeping bags were going to work. they do retain your body heat plus they are wind and rain proof. I'm 6' 200 lbs. and there is lots of room inside the bags. they are not as noisy like other emergency bags. they seem to be coated with a rubber plastic which quiets them down. definitely going to order some more for gifts for my outdoor friends