Rain is rarely the problem; your own moisture usually is · review
GEERTOP Ultralight 1-person bivy shelter, PU 5000 mm review
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.
The bottom line The only listing here to label its weight as a complete set, and one of the few to state sealed seams. It still names no fabric, and gives no breathability figure of any kind.
What this listing puts on record
A one-person shelter with a two-pole aluminium frame, stated at 215 × 75 cm with a 61 cm height, a PU 5000 mm outer flysheet, fully sealed and double-stitched seams, a mesh door, a top window, a packed size of 45 × 13 × 13 cm and a stated 1.3 kg for the complete set.
The labelled weight
This is the one figure in the hub that does what the site keeps asking for: it says what it covers. Approximately 1.3 kg for the complete set is a claim you can weigh a pack against. Elsewhere, one number appears with nothing said about poles, pegs or stuff sack.
The flysheet figure and the missing floor figure
PU 5000 mm is attributed to the outer flysheet. The floor gets no figure, and on a shelter with no separate groundsheet that is the number that decides a night on wet ground.
What the listing keeps quiet about
No fabric name, no denier, and no breathability figure. Airflow is described physically instead — a mesh door and a window at the top — which is a design answer rather than a measurement.
Before ordering
Compare 45 × 13 × 13 cm packed against a one-person tent rather than against a bivy bag. That is the shelf this actually sits on.
Availability
Selling between 83 € and 110 € across the German, French, Italian and Spanish Amazon stores when this page was checked.
Catalogued on the British Amazon store with nobody selling it: the reference is there, the offer is not.
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.
What it does well, and where it gives way
Strengths
The weight is labelled — approximately 1.3 kg for the complete set — which almost nothing else in this hub does
States fully sealed seams with double stitching, alongside a PU 5000 mm figure for the flysheet
61 cm of stated height over a 215 × 75 cm floor is the most usable space in this hub
Compromises
Names no fabric and no denier, so the coating figure has no material behind it
No breathability figure at all — ventilation is described as a mesh door and a top window instead
A two-pole frame and 45 × 13 × 13 cm packed puts it closer to a small tent than to a bivy bag on both counts
Specifications
Fabric
Not published on the listing — a PU-coated flysheet is described, the fabric itself is not named
Denier
Not published on the listing
Hydrostatic head
PU 5000 mm on the outer flysheet — stated
Breathability figure
Not published on the listing — ventilation is described through a mesh door and a top window, with no figure
Breathability test named
Not published on the listing
Seam taping
Fully sealed seams with double stitching — stated
Construction
Two-pole aluminium frame, 215 × 75 cm with a stated height of 61 cm, described as a one-person three-season shelter
Entry and closure
Mesh door, with a window at the top stated to increase airflow; the zip arrangement is not described
Packed size
45 × 13 × 13 cm — stated
Weight
Approx. 1.3 kg for the complete set — stated, and labelled as the whole set rather than the canopy alone
Amazon reference
B0DYTQGC6C (same reference on 5 Amazon marketplaces)
EAN
0791386798963
What people ask before buying
Is this a bivy bag or a one-person tent?
The listing calls it both — a bivy tent and a bivy bag — and describes a two-pole aluminium frame, a mesh door and a 61 cm height. Read the figures rather than the name: at 215 × 75 × 61 cm pitched and 45 × 13 × 13 cm packed, it behaves like a small tent, and it is priced and carried like one.
What does PU 5000 mm cover here?
The maker attributes the figure to the outer flysheet. No figure is given for the floor, and on a shelter pitched directly on the ground that is the second number the hub asks for. It is absent.
Emergency bag · sold as a pair · PE film with aluminium-coated inner · 213 × 91 cm · 115 g stated · 120 dB whistle
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.
Best for: A kit where a named material and a published weight are wanted from an emergency bag.
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.
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.