Insulation thickness and lid discipline, not the litre figure · review
The only box in this hub that publishes an empty weight, and the only one to publish inside and outside dimensions together — 1.3 kg, 20 litres of rigid Styrofoam.
The bottom line The listing with the most complete geometry in the hub — outside, inside and empty weight — and nothing whatsoever on how long the cold lasts.
A rigid passive cool box, stated at 20 litres, in washable plastic over Styrofoam, with a removable lid, rounded edges and an adjustable faux-leather shoulder strap. External dimensions 45 × 30 × 29 cm, internal 41 × 26 × 26 cm, stated empty weight 1.3 kg.
Internal dimensions. Every other listing here gives litres, or gives outside dimensions, or gives nothing. This one gives the space you actually load.
An empty weight. 1.3 kg for the 20 litre box, 1 kg for the 12 litre version. Alone in the hub.
A named insulating material. Styrofoam, in a washable plastic shell, with no trade name in the way.
No retention figure. Reliable cooling is claimed and no hours are given.
No gasket. The lid is stated removable and nothing describes a seal, which on a rigid box is where the cold leaves.
No drain. Melted ice comes out the way it went in.
41 cm of internal length is the useful number: it settles what lies flat inside. 26 cm of internal depth does not stand a 1.5 litre bottle upright, and this is the one listing here that lets you know that before it arrives.
Selling at about 41 € on the German Amazon store when this page was checked.
Catalogued on the British and Italian Amazon stores with nobody selling it: the reference is there, the offer is not.
Nothing came back from the American, French and Spanish Amazon stores, 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.
| Box type | Rigid passive cool box — stated as passive, with a removable lid and no power connection |
|---|---|
| Capacity | 20 litres — stated, with external dimensions of 45 × 30 × 29 cm and internal dimensions of 41 × 26 × 26 cm |
| Insulation type | Styrofoam in a washable plastic shell — both stated |
| Insulation thickness | Not published on the listing — external and internal dimensions are both published, which is not the same as a stated wall thickness |
| Ice retention | Not published on the listing — reliable cooling is claimed, with no figure |
| Ice retention conditions | Not published on the listing — no retention figure is published, so there are no conditions behind one |
| Closure and seal type | Removable lid — stated; no gasket, latch or catch is described |
| Drain | Not published on the listing |
| Carry arrangement | Adjustable faux-leather shoulder strap and rounded edges — stated |
| Empty weight | 1.3 kg — stated for the 20 litre box; the 12 litre version is stated at 1 kg |
| Amazon reference | B0CN9MZYFG (same reference on 3 Amazon marketplaces) |
| EAN | 4017787727514 |
The maker does not state it. It publishes 45 × 30 × 29 cm outside and 41 × 26 × 26 cm inside, and the difference between those is arithmetic this page will not do on your behalf — a subtraction is not a published specification, and lid and base thicknesses are not the same as wall thicknesses.
Because a passive box is carried empty as often as it is carried full, and because it is the one figure that separates a light box from a heavy one before any ice goes in. This is the only listing in this hub that publishes it.
Soft folding basket · 38 × 24 × 25 cm open · heat-sealed lining · zip closure · 30 kg stated load · no litre figure published
A folding insulated shopping basket with an aluminium frame and a stated 30 kg load, and the only listing in this hub that publishes no capacity in litres at all.
Best for: Carrying a full shop from car to table, where the frame and the handles do more work than the cooling does.
≈ 20 €
Soft folding bag · 30 litres in the title, lunch bag in the bullets · over 12 h stated · isothermal lining, unnamed · no closure described
A folding cool bag whose title says 30 litres and whose bullets describe an office lunch bag five times over — the two halves of the listing do not agree, and this page reports both.
Best for: A packed lunch rather than a picnic, on the reading of this listing that its own bullets support.
≈ 25 €
Rigid passive box · 22 litres · 27.5 × 44.5 × 38.3 cm · four 450 ml ice packs built into the lid · 40 h cold and 18 h warm stated · PU/PP
The longest cooling figure published in this hub at 40 hours, and the listing itself says the number rests on the four ice packs built into its lid.
Best for: A weekend where the box is packed once and opened rarely, and the ice packs are frozen properly beforehand.
≈ 60 €
