4.8 Rated by 4246+ customers 

Never Let Your Family Freeze in a Crisis

When the power fails, heaters die, and homes turn to ice—TerraShell's "Thermal Armor" reflects your body heat back to you in seconds. No fuel needed. Just climb in and stay warm.

 Works in Freezing Temps - Car, Home, or Outdoors 

 Warmth in Seconds - No Batteries or Gas 

 Reflects 90% of Body Heat—Without Bulky Wool 

 Blocks Wind, Rain & Snow Instantly 

Regular price $19.99
Regular price $19.99 Sale price $39.99
SAVE 50% Sold out

Limited Time Special Offer 

AVAILABILITY: Only 8 Pieces Remaining
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TerraShell

TerraShell

Regular price $19.99
Regular price $19.99 Sale price $39.99
SAVE 50% Sold out
Shipping policy

Order processing takes 1–3 business days before shipment. Once your item/s is dispatched, the estimated delivery time is:

  • USA: 5–12 business days
  • UK: 5–12 business days
  • Australia: 5–12 business days
  • Canada: 5–12 business days
  • EU: 6–12 business days
  • Worldwide: 7–15 business days

For full delivery terms, see our complete Shipping Policy.

Shipping policy

Order processing takes 1–3 business days before shipment. Once your item/s is dispatched, the estimated delivery time is:

  • USA: 5–12 business days
  • UK: 5–12 business days
  • Australia: 5–12 business days
  • Canada: 5–12 business days
  • EU: 6–12 business days
  • Worldwide: 7–15 business days

For full delivery terms, see our complete Shipping Policy.

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Don’t Let Your Family Be the Next Headline

Every year, thousands of American families face life-threatening colds without power.

Families keeping warm during a winter power outage

Grid failure

Every major winter storm leaves millions without heat for days.

People stranded during a winter emergency

Vehicle Strandings

Thousands of drivers get trapped on highways every winter with no heat, no help, and no timeline for rescue.

Fuel pumps marked out of use

Fuel Shortages

When roads close, propane and oil deliveries stop. Gas stations run dry. Your furnace becomes useless.

Damaged electrical infrastructure during a fire

Aging infrastructure

70% of the US power grid is over 25 years old — and every severe storm pushes it closer to failure.

When Heat Disappears, You Have Just 3 Hours

In a freezing emergency, hypothermia becomes life-threatening within hours, not days.

Children lose body heat 4x faster due to smaller body mass. 

🚨 Hour 1-2: Shivering, numbness, loss of dexterity

⚠️ Hour 3-6: Confusion, drowsiness, organ failure risk

Meanwhile, emergency crews cannot reach you during blizzards. Roadside assistance takes days. Gas stations run dry. Neighbors turn desperate.

Relying on blankets in a crisis can pull heat away from your body faster.

“But I Can Just Use Blankets... Right?”

Why Your Backup Plans Won’t Work When Crisis Hits

Cotton Blankets

They absorb moisture from your breath and sweat. Once damp, they suck heat AWAY from your body 25x faster than air.

Running the Car

Gas runs out in hours. Idling risks carbon monoxide poisoning. Once the engine dies, the car becomes a steel freezer.

Electric Heaters

Useless in a blackout. Require massive generators most families don’t have. Dangerous fire hazard indoors.

Wood Fireplace

Most modern homes don’t have them. Inefficient. Requires dry wood you likely don’t have stored. Smoke risks.

Wait for help

911 lines jam instantly. Snow plows get stuck too. In Buffalo, help took 48 hours. Hope isn’t a plan.

What You Actually Need:

Immediate access to trapped body heat in ANY environment.

No gas. No batteries. No heavy wool. No government help...

Just climb inside and get warm. That’s TerraShell...

Introducing TerraShell, Protection You Can Count On

This survival bivy exists for one reason—Search & Rescue teams kept seeing the same tragedy.

Every backup plan families had needed power, fuel, or fire. When all three were gone, they had nothing.

TerraShell uses "Radiative Mirror" technology to reflect 90% of your body heat back to you — creating a warm, insulated barrier in seconds.

Each bivy is designed to send 90%of your body warmth back toward you and create a windproof, highly water-resistant shell around your body.

So Easy And Quick, Anyone Can Use It

No batteries, no parts to break, stupid simple design means you can count on it when your family needs it most.

Find any safe spot—car, living room, basement, or ditch. Designed to retain critical body heat in freezing conditions.

Climb into the TerraShell bivy. 

As you rest, the aluminized lining instantly reflects your infrared heat back to you—creating a warm micro-climate in minutes.

Most cheap "space blankets" rip easily and are bright orange targets. Not TerraShell.

Built on the Hypothermia Wrap Protocol

When the heat dies and the cold starts winning, there's only one rule: STOP HEAT LOSS. 

That means three things happening at once: block the wind, block the moisture, contain the heat. Most emergency blankets do one. Maybe two.

TerraShell was designed around the full protocol. One action. One layer. Complete thermal containment. 

The same logic taught in wilderness medicine, military SERE training, and cold-water rescue certification—compressed into something even kids could deploy in seconds.

Real Families Who Finally Stopped Procrastinating

Jennifer H.

Jennifer H., Buffalo, NY | Mother of Two

just in time!!

Reviewed in the United States on December 12, 2024. Size: x6 TerraShell

Verified Purchase

I’d been putting this off for two years. Every winter storm brought that sick guilt—I should have emergency supplies—but I never ordered anything. Too overwhelmed. TerraShell was finally simple enough. I ordered the 5-pack, and it arrived one week before the blizzard trapped us in the house with no power for 5 days. My kids sat in these in the living room playing games while it was 40 degrees inside. My husband, who thought I was crazy, said on night two: “Thank God you did this in time.” I can sleep now. Don’t wait like I did.

26 people found this helpful

David M.

David M., Denver, CO | Father of Three

saved us 🙏

Reviewed in the United States on Nov 3, 2025. Size: x3 TerraShell

Verified Purchase

Put 4 stars just cause shipping was a bit long, but as expected. I’m a practical guy, I don’t do doomsday stuff. But after running out of gas on the highway last year I realized we had NOTHING in the trunk. Bought the vehicle kit, took literally 5 minutes to order, arrived in a week, stuck them in the glovebox. Not complicated, not expensive, wish I’d done it 2 years ago.

6 people found this helpful

James R.

James R. | Outdoor Safety Instructor

you need this!

Reviewed in the United States on Oct 26, 2025. Size: x6 TerraShell

Verified Purchase

As a safety specialist with 18 years of experience, I’ve seen too many situations go wrong because people were just waiting for help. You’re on your own for the first 72 hours minimum. I keep TerraShell bags in my own home, truck, and go-bag. During the last freeze, I watched families struggle with wet blankets while those with thermal shells stayed warm. This isn’t paranoid prep—it’s basic physics. Like a seatbelt, you hope you never need it, but you’re grateful when you do.

13 people found this helpful

Why TerraShell Outperforms Every Other Solution

Comparison of TerraShell, a cheap space blanket and a wool blanket
Feature TerraShell Cheap Space Blanket Wool Blanket
Reflects 90% Body Heat
Full Body Enclosure
Windproof & Waterproof
Tactical Army Green (Privacy)
Emergency-Grade Durability
Fits in Palm of Hand
Integrated Whistle

Key Features

Countless families agree: TerraShell is a must-have for every glovebox.

A family using TerraShell outdoors

Easy to Use for Anyone

No fuel, settings or setup. Just 2 simple steps: Open, Climb In.

TerraShell in tactical army green

Tactical “Gray Man” Green

Most bags are bright orange targets. TerraShell is Army Green to keep you hidden and safe from prying eyes in a crisis.

TerraShell being used in wet outdoor weather

Won’t Soak Like Blankets

Cotton blankets absorb moisture and freeze. TerraShell creates a waterproof vapor barrier that keeps you dry and warm.

Compact TerraShell held in one hand

Compact & Portable

TerraShell weighs just 4 ounces and it’s smaller than a soda can. Fits in your pocket, purse, glove box, or emergency bag. Take it anywhere.

TerraShell reflecting body heat

Reflects 90% Heat

Uses aluminized film to recycle your own body heat. Doesn’t require any external power source.

Family safety guidance for using TerraShell

Use Guidance for Families

Made with polyethylene film. Keep the face opening clear for airflow, and supervise children.

  • Mark O.

    "I have received my TerraShells from you. On my initial inspection, they appear to be exactly what you advertised. At this point, I am relieved to have a backup plan that fits in my glovebox! Thanks."

  • julio R.

    "I got mine yesterday and I finally feel like I have a real plan if the power goes out again!"

  • Linda A.

    "Received mine today. Tested one out in the living room right now. They seem very warm. My 1st ever purchase of survival gear. Hopefully, these will keep us safe this winter. Thank you TerraShell."

  • Ben W.

    "I was curious about the quality compared to those cheap foil blankets, so I opened one up. I found the material much thicker and quieter than the dollar store stuff. So I am keeping them!! Thanks for a solid product!!"

  • Eva A.

    "I just have to rave about your product. I got the bundle for my husband who drives a truck. Since he put the TerraShell in his cab he's been showing all his buddies at the depot. He feels so much safer on those long winter hauls. I just can't thank you enough."

  • Mark R.

    "Oh my gosh! We actually have a plan!! This is such a great find. We are both so happy I almost cried! Thank you. Hoping for the best this winter season!"

     Frequently Asked questions 

    TerraShell is designed to boost your survival temperature significantly. While it is not rated for a specific "degree" like a sleeping bag (because it relies on YOUR body heat), users report staying warm in freezing cars and unheated homes down to 30°F and below when wearing normal clothes inside the bag.

    TerraShell is emergency gear, not camping equipment. Like an airbag or a flare, it's designed to deploy once when your life depends on it. That's why smart families keep one in every car, every go-bag, and every bedroom closet. When the heat dies at 2am, you're not digging through the garage looking for 'the family bivy.' Everyone grabs their own and stays warm. At this price, full coverage for a family of four costs less than one tank of gas.

    Yes, but like all bedding, adult supervision is recommended for very young children to ensure they keep their face clear for breathing. The material is non-toxic and safe.

    We specifically designed it in Army Green based on feedback from tactical experts. In a civil crisis (like a blackout or riot), you do not want to be a bright orange beacon advertising that you have supplies. Green allows you to stay hidden. If you need rescue, use the integrated whistle.

    Absolutely. The "Vehicle Team Kit" and "Family Bundle" are our most popular gift options, especially for new drivers or elderly parents living alone.

    Wool is heavy, bulky, and expensive. If it gets wet, it loses insulation. TerraShell fits in your pocket, costs a fraction of the price, blocks wind 100%, and stays waterproof.

    To keep the price affordable (under $20/bag in bundles) while using high-grade 26-micron material, we cut out the retailers and sell directly to you.