I always keep 3 trash bags in my kit. One, to step into and pull up. The larger muscles in your legs generate quite a bit of heat. Another one I make arm holes in and pull over like a poncho, keeps the trunk warm and dry. The third, split down the side, open up and put over your head. This configuration will shed water. Use duct tape to hold it together.

I remember getting one of these after finishing a cross country race in Wisconsin, and they do truly help keeping in body heat.

Mylar E blankets will help you conserve some body heat, but you have to utilize them in ways that maximize their potential. Wearing one inside your jacket will offer much more heat retainment than simply using it over your clothing. When worn over your outer clothing in frigid temperatures, most heat will be lost through convection. This is the cold air coming into contact with the material. If you were to place the mylar sheet on the ground in order to lie on it, it will not reflect much heat at all back to your body due to conduction..when the sheet comes into contact with the cold ground, the ground will cool the sheet and suck the heat away from your body. You'd first have to place bedding between the ground and the sheet and then another layer of bedding on top of the sheet. These E blankets will help quite a bit if utilized correctly. Also remember that you can lose up to 70% of your body heat through your head. Always wear a watch cap or other head gear to help prevent heat loss. You can place strips of an E blanket inside your pants legs, just wrap it around each leg inside. Same goes for feet. I've done this in the mountains at near freezing temperature's without a sleeping bag and it worked fairly well.

You should always put those over waterproof outerwear because when you have that around you you’re going to sweat like nobody’s business and I could give you hyperthermia fast. Also if your outdoor camping in the winter always put it over your sleeping bag not inside with you. You should always put it over something waterproof.

I Carry 4 of these Mylar Blankets and a roll of 2" x 10yrds duct tape with me. it cost me $5.00 total at the Dollar store.

I have a mylar bag for the legs and blanket for the body. Get in the bag with your legs and then wrap the blanket around your upper body. Ihad to use a zpace blanket once years ago. Not that kind but the thicker reusable one's. It made a bad situation bearable and I am hede to talk about it so I have a first hand experience they do work. Thanks for sharing.

In really cold temperatures use your coat over top of the blanket. If well protected people can stay in negative degrees for hours and hours. I know I've done it....

Last winter I hammock camped with a buddy. Temps in teens. He tried to use one of these between his body & hammock instead of a pad or underquilt. He was MISERABLE! He tossed & turned all night. The constant crinkling of that damn blanket kept me awake all night. Because my buddies & I are kind of jerks to each other, I found it hilarious 😂. It did help me realize I needed to learn exactly how these are designed to be used before I find myself in a survival situation.

They work. I played “ victim” in a Wilderness Medical Class. I was wrapped-up in 1 and laid down in the ice and snow for a good while... was comfortable considering...so yes, these should be in every kit.

these are in my opinion great for adding to a shelter I have a small two person tent and I will normally tape one of these to the inside of the roof so to speak and it is a helpful thing when it gets colder.

Don't wait until you're cold. Make a mylar shelter or add as insulation well BEFORE you're cold, because the only thing it does is help you keep your body heat. Also, don't take your jacket off! Keep the warmth.

These work like a charm, I first used one last night.

Thank you for this.I have never even open one and like you have carried these for years in my snowmobile suit pockets along with a a fire starter, and one of those little cable saws. I carry these in case I go,through the ice. I carry more substantial things on the sled itself.

Ty for sharing :D > Yeah bigger and more than one :D Tip. Jumbo paper clips/clothes clips help give options for hands free, a way to seal it up and gives a better chance to fold it up. Duct tape would also go great (credit card size) to make reinforced corners and fits the packaging. Putting the mylar over a t-shirt but under a jacket makes a vapor barrier and gives the mylar more structure/sable. Mylar still conducts heat on its surface so just a little bit a way from the skin to get most benefit. Straight branches can be hammered into snow /ground. Lash/tape on the mylar and face it into the wind while trying to make it still have some tension. Sticks/snow/sand/rocks can be used to hold the mylar down. Mylar can do so much. It just needs structure and a shape to take up.

My favorite part's between between 2:16-2:35 . Sounds amazing on headphones

I sometimes drape mine over my sleeping bag if the night is colder than I was expecting. The heat radiates back immediately and I'm comfortable for the rest of the night.

The two times I have had to use one of these blankets, bivouacked up on a alpine climb, they were all ripped by the morning. But they did help a bit, I put it mostly over my head a face and keep the wind off.

This is EXACLY the type of video I wanted to see for a review. Sub freezing temps complete with gauge 45F versus 32F I guess if you can keep your vital organs warm you will survive Thank you so much!

Get the extra large and a tarp that is similar size. Spray contact cement on the tarp and lay Mylar on it. The tarp will make it really easy to deal with wind and help strengthen the Mylar. Use holes to use it as a windbreak if you have a fire.

Seeing you’re hands work properly in 32 degrees is insane. Cheers from Texas!

Knowing that it kinda works is better than nothing. Thanks for the video.

Here in canada, the dollar store sells those blankets as well as sleeping bags and small pup tent versions 1,2 and 3dollars ,I bought the sleeping bag one as reflective material in grow room, it was at least two of those blankets

One of the most versatile survival implements to have on *any* outing is a generic blue tarp. I tour North America by motorcycle camping for free where every I can set up a tent. Tarps offer weather protection, rain water collection, and somewhat effective wind blocking if deployed correctly. I never hike, travel , or venture far without one. A fire starter, knife, paracord, and a tarp; Everything else is just for convenience! ;-)

if you want to use it like that get one of the SOL emergency sleeping bags

Thank you for testing this out in the cold weather without your jacket on so we don’t have to. A person could wrap one around their waist and one around their upper body.

Good review. Thanks!

So here is a DIY for you if you take a blue tarp and stick the two together with adhesive spray or super Glu you will get a thicker blanket that you can fold up and put in your bug out bag. It will feel more like a blanket and keep you warmer. Wind is your enemy so I do recommend if you use the blanket as it is or the way I told you about make sure you construct a shelter. A simple triangular tint shape would do. You can notch the sticks at the ends(one male end and female end which would look like a gap in the center)so they fit together and then tie them with a rope for better support on the tent. I found the wood stays together better then just tying the two ends together crossed. If your buy a Christmas type tree you can use the branches to cover the structure quick. this will keep the tarp from blowing off you at night.

It occurs to me that even the cheapest, plastic, rain poncho over the mylar would be a significant improvement. The foil would be better held in place around you and the combination might provide some convective insulation as well as radiant insulation. Your thoughts/suggestions?

Great video demonstration 👍👍👍

biggest is best and when used with a pvc bivi bag it will keep you alive in an emergency, excellent in a day bag

From 30 to 47 can maybe allow for a nap, maybe, depending. Definitely could save a life. I'll add 2 to my go-bag. Thank you. Nice to have a "measured" approach to what would otherwise would be a subjective assessment.

I make heat reflective clothing, breathable, wind and waterresistant/proof. My Anorak and overpants weigh a mere combined weight of 6.34 oz. They provide full coverage except for my hands which my heat reflective mittens cover for heavy wind, rain and snow. In 36 deg. F temp., I stayed comfortable hiking. I overheated while moving too fast. It took 10 min. to cool down as I moved slower. My point is that when used as a blanket, cold air and wind still affect the efficiency of the blanket. You need Tyvek 14-M. I purchase mine from Quest Outfitters. If capable of measuring, cutting and bonding material based on your best fitting clothing then you might consider making your own with the heat reflective Tyvek.

The best thing you can do with them is to use an iron and weld three of them together. give the edges about a 3 inch overlap. With three of them put together you will have more than enough to cover up with and still have some of it to use as a ground cloth to fight the ground from stealing your warmth.

Never have it against bare skin, I always carry the SOL 2 person size, they are tougher material too. They are great as an improvised tarp too.

got mine on roadeavour. One more good thing about those blankets are it helps to be more visible at night. haha

Nice test. Although after watching this video, I think I would pack two of these. One for a ground sheet, and one to cover up with. Maybe some duck tape to put them together. But as Calvin pointed out, they do make sleeping bags and tents out of this. I now keep two of the sleeping bags in my Jeep, one for my wife and one for me. And the sleeping bags aren't that much bigger either. I have never tried the mylar blanket, they were called Space Blankets when I bought mine..lol This is good info though, thanks, I always wondered, now I don't have too. Simple but effective

i think using this under my tent would work well as a ground cloth. Thanks!

I did 2 nights covered with one of these and it was pretty bad ! A LOT of condensation ! It does get the temperature up a bit but you get wet ... !

what is this backpack??? i really like it

thanks for sharing

Thanks man

hmm. It seems to me worn like that it's just a windbreaker. Did you by chance test it under your coat to keep your body temperature in? I tested heavy duty aluminum foil on one foot and nothing on the other foot. On one I put socks, aluminim, then a plastic bag to keep it from tearing, then a sock over that. The other just 2 socks. The difference was amazing. One foot was still in my house, the other outside freezing. . lol. I should have put sock, plastic bag, foil, plastic bag, sock because I forgot and did laundry. It took awhile to get the disintegrated foil out of my sock after the laundry.

What backpack is that? Looks like a very decent one.

Cool, thanks bro

Nice review

These require some dead air space between you and the space blanket to work at their best. If you use them to line a shelter, or as a makeshift tent over you, thats where they really shine.

Nice test, thanks.

They sell mylar sleeping bags and tents on ebay

lay it on the ground, lay corner to corner and wrap yourself up that way. get full coverage if done right.

Thanks a lot for the test. I meant to do one myself but somehow I never did.

Thanks

@4:02 looks awesome. Something out of an epic SciFi movie.

great test . in a bad situation it could save your life hence the survival blanket name lol . dont think it is a choice blanket for sleeping with but hey in worse case . how ever they work great for heat reflectors and shelter builds if needed . they also work great for keeping food cold as well if you hike out in the woods with meat couple frozen water bottles wrapped up in a bag with your meat or hey even beer lol and it will stay cold for hours . food for thought .god bless happy new year brother .

Blizzard Survival products are the best I've tested.

If u cant find large ones, you can always carry 2 or 3 and tape them together in a emergency

Thanks for posting! Very informative!

tape several together into a bag, you can make it as bag as you want with that ten pack you mentioned. then fold out into ziploc bag a d squeeze the air out.

I agree it is better than nothing but I believe there are better products out there that may weigh more and take up more a bit more space but be far more valuable and reusable. Jason

That pack and its attached pouches have not been carried and used for years.....they are all pristine.

will it protect us from fire? if in case we are in bulding with fire, can we use this to protect temporarily ?

Big factor with Mylar is it doesn’t breath and will retain moisture not a good thing in extreme cold

Did you ever think of testing a Mylar tent?

THANK YOU SO MUCH FOR DOING THIS! I learned A LOT ABOUT THE BLANKET'S, I ALWAYS WANTED TO KNOW! 10° Heat Up! An to get the FULL SIZE FOR MY BODY! THANKS AGAIN, JESUS BLESS YOUR DAY.

Thanks for shivering for the rest of us. I just think that one is not enough. I carry two of them in my day pack. One to lay down on, and one to go over you. They are noisy, they don't breathe at all, etc. So you are going to have a crappy night - but that isn't the point. Make a bed out of leaves or green branches to get more insulation between you and the ground, ideally in a sheltered area and out of the wind. In winter, you should have a mylar bivvy sack and just suck up the extra weight and cost.

I have the same product. Duct tape is good to have anywhere you travel.😂

they are waterproof and reflect ifa red heat sensors. i will add duct tape and 2 more blankets to my back pack. good info.

they also make oversized ones that are like 72x142

it looks like aluminum foil, does it rip easy? and what about during Summer? you want to cool off, you don't need something to make you toasty warm?

Try getting a 'bag' type one

If used properly they work extremely well for insulating and reflecting body heat or from A fire. Super annoying sound though haha

Thanks for the great review!! They should make a body suit out of them, or at least a poncho type. It would be easier to wrap a poncho shape one around you.

Use multiple blankets. I would use them in shelter building.

What kind of pack is that?

There is N0 insulative value in that thing ! Its a wind and moisture barrier, they totally work by reflecting "Radiant" energy produded BY your body 180° back to the source. It is impossible for a radiant barrier to "trap" heat unless you are 100% enclosed and air. Tight. The shiny surfaces are actually 2 films of Aluminum over a polymer base layer. Aluminum is actually an excellent conductor of heat and is capab.e of conducting body heat away from you, which is why it feels cold when touching your bare skin. They're thin , tear quicker than a twenty-five cent prophylactic and you'll never fold that thing back to its original size . In the Desert they'll make shade, reflect the sun and "possibly" help limit sun & wind burn.

This is the third emergency mylar product I've seen you review I saw the tent and sleeping bag too I love it Table top reviews and commercials are no replacement for in the field review Keep up the great work, I subscribed

Maybe tape 2 together

one would think that it would be better to rap the space blanket around your waste then put back on your jacket and use the space blanket as a jacket liner it might be quieter with the jacket on as well

A lot of these *Mylar* blankets are way too thin. Dont get me wrong they work BUT if you *layer it up with a stronger yet pliable material like Tyvek* or some other brand of house wrap then these things would be WAY more durable.

I miss the old content Where someone just says “thanks for watching” Instead of the people who ask “like and subscribe the video” those greedy people.

Use tape to put more than one together to enlarge it

tape couple of these together,

Putting it inside a sleeping bag really works wonders

So they do work. What brand did you use?

Stitch one between 2 light weight blankets

Good you tested it. Better off bringing some kitchen foil

i have these thats why im here coz i dont know what our city government giving to us for

how 'WELL' Does A Mylar Rescue Blanket Really Work?

Make a shelter with fire inside and layer the blankets around the walls and ceiling it will radiate and reflect the heat...

those things are soo noisy to sleep in, crinkleing and rattleling and def not comfortable. You wont be snuggleing up or cozy. Mine, I folded it as tight as possible and put it in a small nylon bag with a pull string. It will get even smaller shoving it in a bag smaller than the size you can get it down to by hand. Windy? Wind can send this flying off like a feather in the wind, just with a lot of noise. There is also an emergengy tent so you can have that and the blanket and hope everything doesnt blow away an you have a noisey night trying to sleep. Raining? Any shelter is better than no shelter. You bought 12? I wonder if its really cold if you can use more than jusr one, even lay on a few then cover with several. Even in an emergency mylat pup tent.

Thanks for doing the test, but I would never carry one for a survival situation. You will get wet, the wind will get in and get you hyperthermic. I carry a 3 mill orange 55 gal drum liner and a square piece of reflextix to sit on. Cut a V shaped hole for your face near the bottom seam and you'll stay dry, and warm. The orange color will get you found even if you fall asleep

Are they good as insulation? For instance if I had to sleep in my car in 20F temps would it be helpful to put it on my windows ?

😂 laughing with you not at you if you’re laughing

I think he has it on backwards!

Can i wrap my self in aluminum foil ?

Niestety większość UKpostsrów używa koca niewłaściwe.To nie jest przypadek że koc ma dwa różne kolory.strona srebrna odbija podczerwień , natomiast złota pochłania i rozprasza promieniowanie IR. Więc jeśli chcemy poprawić ciepłotę ciała to używamy srebrnej strony w kierunku ciała.

there better for reflecting heat from a fire and in a pinch wrapping yourself with it

Your "daypack fot years" looks like it's about 2 hours old!

you should make ASMR vids XD

32 degrees c is a hot summer's day! who on earth uses Fahrenheit these days? C makes a lot more sense. 32 degs F = 0 degs C so basically freezing point of water 45 degs F is 7.5 degs Celcius, so that isn't very warm at all.

2 of them and some duck tape might cure the size problems glad u tested so I know to throw another one in pack