
Slim ice packs that freeze fast and slide flat against a lunch bag
Is this the right fit?
- Best for
- packed lunches, day coolers, beach bags, and road trips
- Skip if
- Thin packs thaw faster than thick block ice packs, so an all-day cooler needs more than one
- Check before ordering
- Confirm the dimensions, exact model, included parts and return terms on the Amazon listing before ordering.
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A four-pack of XL slim reusable ice packs from Cool Coolers by Fit and Fresh, built thin so they lie flat against the side of a lunch bag or cooler rather than eating the space your food needs. The thin profile also means they freeze through in a couple of hours instead of the overnight wait a thick block ice pack requires, so you can turn them around between a morning and afternoon use. The XL size covers a wider surface, which cools more evenly than a small square dropped in one corner. They stack flat in a freezer drawer. Best fit: packed lunches, day coolers, beach bags, and road trips.
Pros
- Thin profile freezes through in a couple of hours, not overnight
- XL surface area cools more evenly than a small square
- Lies flat against a bag wall instead of taking up food space
- Stacks flat in a freezer drawer
Cons
- Thin packs thaw faster than thick block ice packs, so an all-day cooler needs more than one
Frequently asked questions
How long do they stay cold?
A slim pack holds cold for a typical work-day lunch. For an all-day cooler in summer heat you will want to use two or more, or pair them with a thicker block pack.
How long do they take to freeze?
Because they are thin, they usually freeze solid within a couple of hours rather than the overnight wait a thick pack needs.
Will they fit in a standard lunch bag?
They are designed to lie flat against the wall of a lunch bag or cooler. The XL size is wide, so measure your bag if it is a small single-sandwich size.
Are they reusable indefinitely?
Yes, they refreeze repeatedly. The failure mode is a puncture in the outer shell, so avoid packing them against sharp items.







