Mylar Emergency Sleeping Bag – Waterproof Survival Bivy Sack, Retains 90% Body Heat

NASA-Inspired Warmth. Fits in Your Palm.

Originally developed for NASA space exploration, this mylar emergency sleeping bag reflects and retains up to 90% of your body heat — keeping you warm in extreme cold, wind, rain, and snow. At just 4.6oz and small enough to fit in your hand, it packs into a drawstring stuff sack and goes anywhere: your bug-out bag, car glove box, hiking pack, or first aid kit.

It's your emergency blanket, survival shelter, and bivy sack all in one.

Why It Works

• Retains 90% Body Heat — Aluminized mylar reflects your own heat back to you. Proven NASA-origin technology.
• Extra-Thick 26μm Mylar — Tear and puncture-resistant coating stands up to extreme conditions.
• Waterproof & Windproof — Heavy-duty aluminized PE interior resists rain, wind, and snow.
• Ultra-Compact — 84 × 37 inches open. Rolls down to palm size. Weighs just 4.6oz.
• Includes Stuff Sack — Nylon drawstring bag keeps it organized and ready to deploy.
• 3-in-1 Function — Use as an emergency blanket, bivy sack, or improvised survival shelter.

Comfortable Temperature Range

5–15°C (41–59°F). Suitable for spring, summer, autumn, and emergency winter use.

Specs

• Material: 26μm Mylar + Aluminized PE
• Open Size: 84 × 37 inches (213 × 94cm)
• Weight: ~4.6oz (130g)
• Length: Fits up to 1.8–2m height
• Colors: Orange Set, Green Set
• Best For: Camping, Hiking, Survival, Bug-Out Bag, Car Emergency Kit, First Aid

Pocket-sized protection. Life-saving warmth. Add it to your kit today.