Insulated Box Liners
Turn any corrugated box into a cold shipper. Five liner constructions cover 24 to 72-hour transits for food, pharma and industrial shipments — all collapsible, all made in the USA.
An insulated box liner plus a stock carton replaces a molded cooler: it ships and stores flat, costs less, and protects frozen and refrigerated goods through the door. Pair with the gel packs on our refrigerants page to complete the pack-out.
Liner series at a glance
All series are collapsible, ship flat or compressed, and are made in the USA. Custom sizes at no tooling cost.
| Series | Construction | Format | Recommended use | Options | Min. order |
|---|---|---|---|---|---|
| FB | Foil-bubble — metalized film laminated to air-bubble layer (3/16", ~1 oz/ft²) | 1-piece bag, peel-&-seal lip | Refrigerated, up to 24 hrs | Lite, single or double bubble (double ≈ 20% better); white exterior available | 1,000 / size |
| PL | 100% paper — insulating paper panels in a paper shell, curbside recyclable | 1-piece or 2-piece liner | Frozen & refrigerated, up to 48 hrs | Flat-packs for storage; world-first one-piece paper construction | 500 / size |
| PU | Pop-up — flexible foam panels in reflective sleeves, ships compressed | 2-piece panel set, locks together | Frozen & refrigerated, 48–72 hrs | Self-inflates on opening; Ultra thickness for extreme duration; pairs with dry ice | 1,000 / size |
| EL | Eco — natural cotton-based panels wrapped in bio-based film | 2-piece liner | Refrigerated, ~48 hrs | Lower minimum quantities available | Ask |
| SL | Mono-material LDPE reflective bubble — fully recyclable, second-generation | 1-piece bag | Refrigerated, up to 24 hrs | High recycling value, single resin | Ask |
How to choose
For 24-hour parcel shipments of refrigerated goods, the FB foil-bubble liner is the workhorse — watertight, FDA-compliant materials, and sealed in seconds. Going 48 hours or wanting curbside recyclability? Choose the PL paper liner. For 48–72-hour or frozen shipments, the PU pop-up panel liner delivers molded-cooler performance at a fraction of the storage space (75% space savings vs molded coolers), and works with gel packs or dry ice. EL and SL round out the line for sustainability-first programs. Independent-style performance testing (ISTA summer profiles) is available on request, and payload testing can be run in an environmental chamber before you commit.
Custom sizes are made to order at no tooling cost — send us your box size and transit time.
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