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ORTOVOX Bivy Ultralight, 235 × 110 cm, 150 g stated review

A two-person emergency bivy that publishes the two figures its name rests on — 150 g and a 5 × 5 × 9 cm packed size — and names no fabric at all.

The bottom line The emergency bivy that answers the two questions you carry it on, and none of the questions you would sleep in it on.

What this listing puts on record

A flat emergency bivy in shocking orange, stated at 235 × 110 cm, with a silver coating on the inside, a published weight of 150 g and a published packed size of 5 × 5 × 9 cm.

Why the two published figures matter

An emergency bag is carried for years and used once. That makes packed size and weight the specification, because they decide whether it stays in the pack at all. This is one of the few listings in the hub to publish both, and 5 × 5 × 9 cm is small enough to check against a lid pocket.

What it does not publish

No fabric, no denier. The silver coating is named; what it is coated onto is not.

No hydrostatic head, no breathability figure. Both are absent, and the second is the one that governs condensation inside a sealed bag — twice over when the maker states the size suits two people.

No closure. Nothing is said about how the bag is entered or shut.

Before ordering

This is an emergency item, not a shelter you pitch. The hooped and laminated bags in this hub are a different purchase.

Availability

Selling between 21 € and 27 € 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.

Catalogued on the American Amazon store with nobody selling it: the reference is there, the offer is not.

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.

What it does well, and where it gives way

Strengths

  • Publishes both the weight and the packed size, which is what an emergency bag is actually carried on
  • 235 × 110 cm is the largest cut in this hub, and the maker states it takes one or two people
  • A 5 × 5 × 9 cm packed size is small enough to be checked against a lid pocket before ordering

Compromises

  • Names no fabric and no denier, so there is nothing to compare against the laminates further up the hub
  • No hydrostatic head figure behind the word waterproof
  • No breathability claim, which on a coated bag decides how much of your own moisture stays inside

Specifications

FabricNot published on the listing — a silver coating on the inside is stated, the base fabric is not named
DenierNot published on the listing
Hydrostatic headNot published on the listing — the bag is called waterproof, with no millimetre figure
Breathability figureNot published on the listing — the listing makes no breathability claim at all
Breathability test namedNot published on the listing
Seam tapingNot published on the listing
ConstructionFlat bag, 235 × 110 cm, stated to suit one or two people; no pole or hoop is listed
Entry and closureNot published on the listing — no zip, hood or drawcord is described
Packed size5 × 5 × 9 cm — stated
Weight150 g — stated; the listing does not say whether that figure includes the stuff sack
Amazon referenceB076DJQNYX (same reference on 6 Amazon marketplaces)
EAN4250875271029

What people ask before buying

Is 150 g the whole thing?

The listing gives one number and does not label it. Whether the stuff sack is inside that figure is the sort of detail that separates two bags on a spreadsheet, and the maker does not settle it.

Can two people really use a 235 × 110 cm bag?

The maker states the size suits one or two, and 110 cm of width is the widest cut here. What the listing does not publish is any breathability figure, and two people inside a sealed bag produce twice the moisture — that trade-off is unstated.