Skip to content
Four XL slim ice packs in blue and green lying flat in a lunch bag setting
Buying notes·Page updated

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.

Listing-based buying notes. We have not tested this product hands-on. Confirm the selected size, seller and current terms on Amazon.

Compare other summer essentials & poolside picks →
Check current price on Amazon
View on Amazon
  • Check Amazon for shipping eligibility
  • Check the item's current return terms
  • As an Amazon Associate we earn from qualifying purchases

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.

Slim ice packs that freeze fast and slide flat against a lunch bag

Check current price on Amazon
View on Amazon