Survive Outdoors Longer 90% Emergency Bivvy - Comes with Survival Whistle & Tinder Paracord Drawstring - Add to Emergency Kit &…
S.O.L. Survive Outdoors Longer
Best for
Best overall
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Based on 2 trusted sources
Current price
$25.49
Updated May 18, 2026 · 1 min read
Sources behind this verdict
6 reviewers weighted by source trust
The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
Across the reviewers we read, the SOL 90% Emergency Bivvy lands as the most well-rounded pick in the category. r/Ultralight threads repeatedly surface it as the default recommendation for a day-hike or backcountry emergency layer, with users describing it as 'pretty good' shelter that's 'reasonably warm and waterproof' when paired with a sleep mat or debris insulation. The 90% reflectivity claim and integrated whistle/paracord drawstring also drew positive mentions across mainstream retailer listings at walmart.com and target.com.
What reviewers liked
- Strong consensus across multiple high-trust r/Ultralight threads as a reliable emergency shelter
- 90% claimed heat reflectivity plus waterproof and windproof construction
- Bundled whistle and paracord drawstring add survival-kit utility
- Compact enough for a glove box, daypack, or EDC bag per retailer reviewers
Where it falls short
- Specialist-subreddit consensus flags meaningful interior condensation, it is not as breathable as marketed
- Not a substitute for real insulation, reviewers stress you still need a pad or debris layer
- Pricier than basic mylar bag-style competitors
- Durability for repeated use is limited compared to a true backpacking bivy
Across the reviewers we read, the SOL 90% Emergency Bivvy lands as the most well-rounded pick in the category. r/Ultralight threads repeatedly surface it as the default recommendation for a day-hike or backcountry emergency layer, with users describing it as 'pretty good' shelter that's 'reasonably warm and waterproof' when paired with a sleep mat or debris insulation. The 90% reflectivity claim and integrated whistle/paracord drawstring also drew positive mentions across mainstream retailer listings at walmart.com and target.com.
The consistent caveat, surfaced in multiple r/Ultralight threads, is that this bivy is not truly breathable, condensation will build up if you sleep in it for a full night, and one community contributor noted modifying theirs (trimming weight to around 6 ounces) to make it more usable. Trueprepper's writeup, tagged unknown trust, adds that the included whistle is functional but not premium. Reviewers across the board frame it as emergency insurance rather than a planned sleep system, and at that job the trust-weighted consensus is strongly positive.
- Nylon
- Imported
- Retain Body Heat
- This heat-reflective SOL emergency bivvy traps 90% of body warmth, adding to your survival supplies for the great outdoors or emergency survival kit
- Ultra Lightweight
- At less than 4 oz and as compact as a soda can, the SOL emergency bivvy sack slips into any emergency kit or hiking gear with ease
- Weatherproof Protection
- As part of your emergency disaster preparedness kit, this waterproof bivvy sack measures 36 x 84 inches and is a durable shield against rain, wind, and snow
- Rescue Ready
- Equipped with a survival whistle and tinder paracord drawstring, this bivvy is a pivotal piece of survival gear in your emergency kit
- Rugged Fabric
- The SOL emergency bivvy is made from ultra-quiet, tear-resistant material, ensuring it stands up to punctures without fail
I had one unplanned bivvy where I used the Space Blanket I'd been hauling around for years. It was very frustrating; it was so lightweight that ...
It's pretty good, it'll keep you reasonably warm and it's waterproof so it'll work as an emergency shelter if you have a sleep mat or a pile of ...
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