Insulation thickness and lid discipline, not the liter figure · review
The only cooler on this shelf with an ingress rating — IPX7 on the outside, a leakproof lining on the inside — and a 48-hour claim with nothing beside it.
An 18 liter soft box cooler, 24 cans, IPX7.
Quiksilver states up to 48 hours of ice retention from advanced insulation technology and a high-performance thermal lining; a capacity of 18 L holding up to 24 cans plus ice; a leakproof interior lining against spills in transport and an IPX7 waterproof exterior against rain, splashes and sand; durable materials with reinforced stitching; and lightweight construction with sturdy carry handles.
No insulation named. No thickness. No closure named. No conditions. No drain. No weight.
IPX7, on the outside.
Thirty minutes under a meter of water, with dust not separately tested. For a beach, a boat deck or a bag set down in the shallows, that is the claim that matches the use.
Thirteen listings sit on this shelf. This is the only one that publishes an ingress rating at all.
The same number from two different products.
The Pinnacle rigid box in this group also claims 48 hours, behind a stated 20 mm (0.79 in) of polyurethane.
This bag claims 48 hours behind advanced insulation technology and a thermal lining, with no material and no thickness.
Neither publishes a fill ratio or an ambient temperature. This shelf’s buying tip says what follows: two makers quoting the same hours may have tested nothing alike.
The closure.
Leakproof lining, waterproof exterior, reinforced stitching — and no zip, no roll-top, no gasketed lid anywhere on the page.
This shelf’s introduction makes the seal the third thing that decides a cooler, and asks whether it is the part that fails first. On this listing it is not described at all.
The American Amazon store was listing it at about $50 at the time of writing.
Every figure here is what Keepa held on the day this page was last revised. Offers and prices shift without warning.
Prices quoted in this text were read on October 23, 2026. The live price is at the top of the page.
| Box type | A soft box cooler — a structured bag that holds its shape, stated as a soft cooler rather than a rigid shell |
|---|---|
| Capacity | 18 L — stated, with up to 24 cans plus ice. The liter figure and the can figure are both given, which half the listings on this shelf do not manage |
| Insulation type | Not named. The listing states advanced insulation technology and a high-performance thermal lining, and names no foam, foil or laminate |
| Insulation thickness | Not published |
| Ice retention | Up to 48 hours — stated in the title, the first bullet and the description. It is the joint longest claim on this shelf, level with the Pinnacle rigid box in this group, which publishes a 20 mm (0.79 in) wall where this publishes none |
| Ice retention conditions | Not published — no fill ratio, no ambient temperature, no ice quantity. This shelf's buying tip is written for exactly this pair of listings: two makers quoting 48 hours, one with a stated 20 mm (0.79 in) of polyurethane and one with an unnamed lining |
| Closure and seal type | A leakproof interior lining is stated to prevent spills in transport, with an IPX7 waterproof exterior against rain, splashes and sand. The closure itself — zip, roll-top or lid — is not named |
| Drain | Not published. No listing on this shelf publishes one |
| Carry arrangement | Sturdy carry handles — stated. No shoulder strap, no backpack straps, no wheels |
| Empty weight | Not published. The listing calls the construction lightweight and gives no figure; only two listings on this shelf publish one |
| Amazon reference | B0H2BPX6HW |
| EAN | 0840286415347 |
The outside of the bag, against water getting in — IPX7 is the rating for thirty minutes under a meter of water, and the X means dust was not separately tested. It is the only ingress rating published anywhere on this shelf, and on a beach or a boat it is the right thing to publish: rain, spray, wet sand and a bag set down in the shallows are the conditions that ruin a soft cooler’s shell. What it does not describe is the cold. An IPX7 shell with an unnamed lining and no stated thickness will keep water out and tell you nothing about how long ice lasts inside it.
Both listings claim it, and this shelf's buying tip is written for this exact pair. The Pinnacle rigid box in this group publishes 20 mm (0.79 in) of polyurethane foam behind its 48 hours; this soft bag publishes advanced insulation technology and a high-performance thermal lining, with no material and no thickness. Neither publishes a fill ratio or an ambient temperature — no listing on this shelf does — so neither number is a measurement. What is comparable is the wall, and only one of the two has published one.
For this use, the case is reasonable. A soft body packs down when empty, tolerates being dropped on sand, and carries more easily on uneven ground than a rigid shell with a swing handle. The IPX7 rating and the reinforced stitching are the two claims that match the setting, and the leakproof lining is what keeps melt water off the car seat on the way home. Against it: this shelf's introduction is clear that a rigid box with thick foam walls and a soft bag with a thin liner are not the same product even at the same quoted hours, and this listing never says which of the two it is closer to.
Close prices, same category: comparable camping gear. We keep only the specifications all of them publish, because a column with gaps compares nothing.
| Model | Price | Box type | Capacity | Insulation type | Insulation thickness |
|---|---|---|---|---|---|
| Quiksilver QK-CB12-TPC | $50 | A soft box cooler — a structured bag that holds its shape, stated as a soft cooler rather than a rigid shell | 18 L — stated, with up to 24 cans plus ice. The liter figure and the can figure are both given, which half the listings on this shelf do not manage | Not named. The listing states advanced insulation technology and a high-performance thermal lining, and names no foam, foil or laminate | Not published |
| BRILLIRARE Collapsible 39 L ice chest | $40 | A collapsible rigid box — EPP foam walls that fold, stated to save up to 80 per cent of their space when packed down. It is the only folding rigid box on this shelf; the other rigid boxes here are fixed shells and the folding products are soft bags | 39 L — stated, given also as 10.3 US gallons and as 60 small bottles or jars. It is the largest capacity published on this shelf, above the 33 L soft bag and the 30 L group | EPP foam — expanded polypropylene, named, and described as owing its insulation to small bubbles in its structure, with a waterproof surface layer over it | Not published. In its place the listing gives a thermal conductivity coefficient of 0.028, which is the only conductivity figure published anywhere on this shelf. A conductivity tells you how well the material insulates; a thickness tells you how much of it there is, and without the second the first cannot be turned into a wall |
| BAGLHER Cooler backpack, 25 L | $25 | A soft insulated backpack — the only listing on this shelf carried on two shoulders. Three European bags here offer a shoulder strap; none is a two-strap pack | 25 L — stated, with up to 30 cans of 330 ml, and external dimensions of 13 × 8 × 17 in. Those are the only external dimensions published by an American listing on this shelf | Not named. The listing states insulation material and a leak-proof liner working together, and does not say what either is made of. Several of the four listings on this shelf name their insulation; this is not one of them | Not published |
| Pinnacle PIB-450B | $24 | A rigid passive box with a flip-top lid — no power, no ice packs supplied. One of two rigid American boxes on this shelf | Published twice, and the two do not agree: the title says 4.5 to 11 liters, and the fourth bullet says this picnic cooler has a 4.5 liter capacity. Four point five liters is the smallest capacity published on this shelf; eleven would still be among the smallest | Polyurethane foam — named, with BPA-free materials stated for the shell | 20 mm (0.79 in) — stated. It is the thickest insulation published anywhere on this shelf, and one of only two thickness figures on it; the European Lifewit bag publishes 8 mm (0.31 in) of EPE |
A beach or a boat, where the box sits in wet sand and spray rather than in a boot
Specifications: the manufacturer sheet for camping and hiking gear and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
Soft folding basket · 15 × 9.4 × 9.8 in (38 × 24 × 25 cm) open · heat-sealed lining · zip closure · 66 lb (30 kg) stated load · no liter figure published
A folding insulated shopping basket with an aluminum frame and a stated 66 lb (30 kg) load, and the only listing in this hub that publishes no capacity in liters at all.
Best for: Carrying a full grocery run from car to table, where the frame and the handles do more work than the cooling does.
Collapsible rigid box · 39 L, the largest on this shelf · EPP foam, 0.028 conductivity stated · 24 h cold and 12 h warm · buckle lid the maker says leaves gaps · no drain · no thickness
The largest capacity on this shelf at 39 liters, and the only listing anywhere here to publish a thermal conductivity figure — on a box whose maker says in its own last sentence that the lid leaves gaps.
Best for: A car boot where the box has to fold flat between trips and volume matters more than the seal
≈ $40
Soft insulated backpack · 25 L, 30 cans · 13 × 8 × 17 in · 16 h cold or hot · 1.65 lb empty, the lightest published here · leakproof liner · zips · six pockets
The only cooler on this shelf carried on both shoulders, and the several of the four listings anywhere here that publish an empty weight — 1.65 pounds, with six pockets and a leakproof liner.
Best for: A walk-in pitch or a cycle ride, where the cold has to travel on your back and not in your hand
≈ $25
