Description
The Stormvale Emergency Mylar Bivvy Sack is designed for outdoor enthusiasts, emergency responders, and anyone who needs a quick, reliable shelter. Its reflective surface retains body heat while keeping moisture out, making it ideal for sudden weather changes or extended outdoor trips.
Why you will like it
- Lightweight: Weighs only 0.4 lbs, easy to carry.
- Compact: Folds to a 4.5″ x 4.5″ pouch for backpacking.
- Heat Retention: Reflective layer helps trap body heat in cold conditions.
- Waterproof: 100% waterproof with a durable outer shell.
- Easy Setup: Pull out and zip up in under a minute.
Specifications
| Brand | Stormvale |
|---|---|
| Material | Mylar 0.02″ polyester |
| Dimensions (folded) | 4.5″ x 4.5″ |
| Dimensions (expanded) | 18″ x 18″ |
| Weight | 0.4 lbs |
| Pack Size Options | 1-Pack, 4-Pack |
| SKU | SV-HS-001 |
What is in the box
- 1 Stormvale Emergency Mylar Bivvy Sack
- 1 zippered pocket
Frequently asked questions
Is the bivvy suitable for extreme cold?
It provides passive heat retention but is not a substitute for insulated shelter in extreme cold.
Can I use it as a rain cover?
Yes, the waterproof material will keep rain off, but it is not designed for prolonged exposure to heavy precipitation.
How do I clean it?
Wipe with a damp cloth and allow to air dry; avoid harsh detergents.
What is the best way to pack it?
Fold it flat and store in a dry pouch to maintain shape.
Shipping & returns
Ships from our US warehouse in 1–2 business days. Free standard shipping on orders of $59 or more; $6.95 below that (contiguous US). Return unused items in original packaging within 30 days of delivery. Damaged or defective items are replaced or refunded. See our Shipping Policy and Return Policy.






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