Rain is rarely the problem; your own moisture usually is · review
An emergency survival bag sold in twos with a whistle sewn in — it names its film and gives a weight, and publishes nothing about breathability or closure.
The bottom line The emergency bag that says what it is made of and what it weighs. Everything a shelter bivy is judged on is still absent, and that is the honest reading.
Two emergency bags, stated at 213 cm long and 91 cm wide, with an aluminium-coated inner face, a tear-resistant PE film outer, and a whistle published at 120 dB.
115 g. A weight, which two thirds of this hub does not give at all. What the listing does not say is whether the figure is for the bag alone.
213 × 91 cm. The maker states the size is enough for two people to share in an emergency.
A named material. PE film outside, aluminium coating inside. That is more than the silvered inner face other emergency bags describe without naming anything.
No hydrostatic head, no breathability figure, no seam treatment, no packed size, and no description of how the bag closes. On a film bag the first two follow from the material; the last two do not, and their absence is the listing’s own choice.
Note that the price covers a pair, and that the whistle is part of the bag rather than a separate item.
Selling between 17 € and 24 € across the German, French, Italian and Spanish Amazon stores when this page was checked.
It also sells on the British Amazon store in the local currency, which the range above does not cover — that range counts euro stores and nothing else.
Nothing came back from the American Amazon store, so the buy link there opens a local search instead of a page that is not there.
Every figure in this section is what Keepa returned on the day this page was last updated. Prices and offers change without notice.
Prices quoted in this text were read on 6 September 2026. The live price is at the top of the page.
| Fabric | PE film outer with an aluminium-coated inner face — stated |
|---|---|
| Denier | Not published on the listing — the outer is described as a PE film rather than a woven fabric |
| Hydrostatic head | Not published on the listing — the film is called waterproof, with no millimetre figure |
| Breathability figure | Not published on the listing — the listing makes no breathability claim at all |
| Breathability test named | Not published on the listing |
| Seam taping | Not published on the listing |
| Construction | Flat bag, 213 cm long and 91 cm wide — stated; sold as a pair, with a 120 dB whistle built in |
| Entry and closure | Not published on the listing — no zip or hood is described; the maker states the bag can be re-packed and reused |
| Packed size | Not published on the listing |
| Weight | 115 g — stated; the listing does not say whether that figure covers the bag alone or the bag as it is supplied |
| Amazon reference | B09V2MDQHZ (same reference on 5 Amazon marketplaces) |
| EAN | 4260619851370 |
A polyethylene film is not a membrane and the maker claims nothing for it. That is worth reading plainly rather than as an omission: the listing does not pretend otherwise, and the hub's breathable laminates are a different product at a different price.
The listing does not say. It gives one number without labelling it, which is the recurring problem across this niche — a packed weight and a bare weight can differ by more than the margin people shop on.
Sleeping-bag cover · 3-layer Gore-Tex · polyamide face and lining, PTFE membrane · 243 cm long, 98 cm shoulder · central zip · no weight or packed size
A 3-layer Gore-Tex cover that names every layer of its construction and publishes neither a waterproof figure, a breathability figure, a weight nor a packed size.
Best for: A winter sleeping bag that needs a long, wide cover and where the membrane name is the specification being bought.
≈ 535 €
One-person bivy shelter · two aluminium poles · PU 5000 mm flysheet · sealed and double-stitched seams · 215 × 75 × 61 cm · 1.3 kg complete, stated
A poled one-person shelter sold as a bivy, publishing a flysheet water column, sealed seams and a complete-set weight — with no fabric named and no breathability figure.
Best for: A solo pitch where head room and a sealed floor matter more than packing small.
≈ 83 €
Hooped bivy · poles supplied · 3-layer laminate · 10,000 mm water column · 3,000 mvp · mosquito net · 1.4 kg and 35 × 13 × 13 cm packed, stated
The one hooped bivy here with poles in the box — it publishes a water column, a breathability number and six ground loops, and names no test for the number.
Best for: A one-person pitch where the head space of a hoop is wanted and a tent is not.
≈ 75 €
