Life Bivy with Survival Whistle
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Don’t get caught exposed when the cold hits — this Emergency Thermal Life Bivy is your ultra-light, life-saving shelter for dire situations. Whether you’re stranded outdoors, bugging out, or preparing for disaster scenarios, this compact bivy is designed to protect you and preserve your core warmth in harsh conditions.
Key Features & Benefits
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High Reflectivity Heat Retention: Builds heat-reflective lining (usually mylar or aluminized foil) that reflects your body heat back to you, drastically reducing heat loss. This can help prevent hypothermia when every degree matters.
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Windproof & Waterproof Barrier: The sack provides reliable protection from wind and moisture. Keeps rain, snow, and damp ground from sapping your warmth.
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Ultra-Lightweight & Packable: Compresses down small so it fits into any survival kit, backpack, or emergency gear stash. Minimal bulk, maximum life-saving potential.
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One-Person Capacity: Designed to snugly fit a single adult (or with a sleeping pad), keeping dead air space minimal so heat stays close.
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Quick & Simple Use: No complicated setup — just crawl inside, seal off openings, and let the material do what it was made for: retaining heat.
Ideal Uses / Scenarios
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In your bug-out bag, for emergency shelter when you’re hiking, camping, or traveling off the grid.
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For vehicle kits — if your car breaks down, this gives you a last-resort layer of protection.
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Disaster prep: earthquakes, storms, flooding, or any event where warmth and dry shelter become urgent.
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As a backup sleeping solution: even experienced outdoors people often carry a bivvy sack to layer over a sleeping bag if temperatures drop unexpectedly.
Considerations & Performance
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Because it’s a “thermal/mylar emergency bivy,” it’s best used for short periods—overnight or in urgent situations—rather than as a daily shelter or long-term sleeping system.
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Condensation can build up inside such sacks, since the shiny inner lining reflects heat but isn’t always very breathable. It’s better than getting soaked or hypothermic, but expect some moisture when used extensively.
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Size matters: ensure it’s long enough for the user, especially if wearing clothes or boots inside.
Weighing only 4 oz. and packing down small enough to fit in your pocket, this emergency bivy sack unfolds to a full 70 in. × 25 in. size for one-person use. Made from waterproof, windproof, heat-reflective mylar, it retains up to 90% of body heat and features a bright orange exterior for high visibility in rescue situations.
Color: OD Green
Shipping Calculated At Checkout
Note: USPS Ground Advantage™ service includes up to $100 insurance in the price. We recommend adding the Order Protection option for orders over this amount.
All orders are processed within 2-3 business days.
All orders are processed and shipped during our business hours. Orders are not shipped or delivered on U.S. holidays.
If we are experiencing a high volume of orders, shipments may be delayed.
Please allow additional days in transit for delivery.
If a significant delay in shipment is expected, then we will contact you via the information you provide at checkout.
Overnight delivery is only available for orders with delivery addresses within the continental United States.
Delivery delays can occasionally occur.
Expected Transit Times
All transit times are based on once your order ships.
USPS Ground Advantage™ - 2 to 5 Business Days
USPS Priority - 1 to 3 Business Days
USPS Priority Express - Next-Day to 2 Business Days
UPS Ground - 1 to 5 Business Days
Once we receive your item, we will inspect it and notify you that we have received your returned item. We will immediately notify you on the status of your refund after inspecting the item. If your return is approved, we will initiate a refund to your original method of payment. You will receive the credit within the terms set forth by your credit card/debit card company.
You have 30 calendar days to return an item from the date you received it. To be eligible for a return, your item must be unused and in the same condition in which you received it. Your item must be in the original packaging. Your item must have the receipt or proof of purchase .If you make a purchase for the holidays between October 1st and December 25th we will accept returns for those items up until January 31st of the following year provided that the same requirements above are met - the item is unused, has original packaging returned with it, and has a proof of receipt showing the date of purchase. PLEASE NOTE: The purchaser shall be responsible for paying return shipping costs. Initial shipping fees are nonrefundable. If your return qualifies for a refund you will receive the refund for that item(s) minus a 10% restocking fee.
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