How we rank

What we rank on

Three things decide whether a cooler or a tumbler gets bought once: how long it actually holds ice or cold, what the maker has put on paper about fixing it when it fails, and whether the parts that wear out can be ordered. Capacity per dollar, build quality and a plain editorial call on whether the thing suits a buy-it-for-life owner round it out. Those are the axes the site's brief named, and the axes a person who hates rebuying actually shops on. Nobody buys a second cooler because the first one had the wrong logo.

The rubrics and their weights

Each product is scored 0 to 10 on each metric; the overall score is the weighted mean, computed by the same code that renders the card, so a page can never show an overall that disagrees with its parts. Coolers and drinkware use the same weights so an 8.1 means the same thing in both hubs; ice packs and parts use a shorter rubric.

What each score is built from

• Ice retention (reported), 30%. Hours or days to 40°F and 50°F as measured by a named third-party test, cited on the card. A measured figure beats a maker's claim in either direction. Where no test exists, the product is scored on its published insulation thickness and construction and the card says “unverified: no third-party test found as of” the date. Maker claims (“up to 10 days”) are shown, labeled, and never scored as measurements.
• Warranty term, 20%. Years, from the manufacturer's published warranty page, quoted and linked with the date we read it. Lifetime scores 10; ten years 9; five years 7; three years 5; one year 3; 90 days 1; a term we could not read on a fetchable page scores as unknown (2–3), and the card says “unverified.”
• Repairability, 15%. Are the wear parts sold? Latches, gaskets, drain plugs, handles and feet for coolers; lids, gaskets and straws for drinkware. First-party parts on the maker's site score 9–10; parts visible only through a warranty claim or third-party listings score 5–7; nothing listed scores 2–4.
• Capacity per dollar, 15%. Rated quarts (or ounces) divided by the maker's list price at time of writing. The list price is used only for the ratio and is never displayed as “the price”; the displayed price is always “Check price on Amazon” until a live feed exists.
• Build & carry, 10%. Rotomolded vs injection-molded, latch and handle design, empty weight, wheels, lid type, from published specs.
• Fit for the buy-once buyer, 10%. The editorial call: does this get bought once? A short warranty, a sealed lid or an unrepairable zipper costs points here even when the ice hours are good.

The tests we cite, and why

We own no test lab and no units, so every ice-retention number on this site belongs to someone who does. These are the publishers we cite, what they measured, and where:

• OutdoorGearLab: iButton sensors in a controlled room, hours to 40°F and 50°F, 23 hard coolers and 19 soft coolers in its 2026 tables. Source.
• Outdoor Life: one-third-capacity ice load at 60–70°F ambient, hours to melt-out, May 2026; ice packs by infrared thermometer after a 36-hour freeze. Source.
• Treeline Review: two years of daily tumbler use, 180–200°F hot fills, ice tests, dishwasher tests, August 2026. Source.
• Outside Online (Outside Lab): a 96-hour dark, unopened lab test with block ice plus a 3-day backyard test, Yeti Tundra Haul vs RTIC 52, 2026. Source.
• Gear Patrol: 72-hour patio test in ~90°F heat with ThermoWorks sensors every 4 hours, Tundra 45 vs RTIC 45. Source.
• Switchback Travel: qualitative field use; the source of the honest 'expect about half the claimed retention' framing. Source.

When tests disagree (Gear Patrol found the Tundra 45 and RTIC 45 within 2.4°F at 72 hours; Outside Lab found the RTIC fully melted at 96 hours while the Tundra Haul still held ice), we show both and explain the protocol difference. See how ice-retention tests work.

How a warranty term gets onto the page

We read the manufacturer's own warranty page, quote the term as written, link it, and record the date. Where the maker blocks automated fetches, we say what we used instead: YETI's terms are quoted from a copy of YETI's warranty page republished by an authorized dealer and cross-checked against Outdoor Life's 2026 reporting; Hydro Flask and Coleman could not be read at all and are marked unverified. Terms change (RTIC's hard-cooler term has moved more than once), so every warranty page on the site carries the date it was read, and readers who spot a change can tell us.

What we refuse to claim

• Units we claim to have tested: 0. Every page says so.
• We do not print Amazon prices, star ratings or review counts. Buy buttons read “Check price on Amazon” until a live, dated price feed exists; if one is added, prices older than 48 hours disappear automatically.
• We do not publish a self-authored review rating in structured data. The visible score is editorial content; it is never marked up as a product rating.
• We do not invent a spec, a warranty term or an ice hour a source doesn't give us. A dash or “unverified” means exactly that.
• We attribute every measurement to whoever made it, by name and link.

How a product gets removed

A product leaves a ranking when the maker stops listing it, when it can't be sourced to a maker or dealer page, when the Amazon search that its button points to stops returning it, or when a reader shows us a figure we printed is wrong and we can't re-verify it. Changes are logged on the page.

Commissions and rankings

The site earns Amazon Associates commissions on qualifying purchases. The rubric is fixed before a product is scored, the scores are published with their weights, and a product's commission rate is not an input to any of them. See the editorial policy and affiliate disclosure.