Heavy-duty reusable ice packs that keep a cooler cold for days, not hours.
The trick to a cooler that holds cold is mass. A big, dense, frozen block beats a bag of cubes every time, and it won't leave your food swimming in meltwater. Kona's cooler ice packs come in 2 lb, 4 lb, and extra-large slim sizes, so you can match the pack to the cooler, from a day at the lake to a catering run.
How to pick a cooler ice pack
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2 lb packs are the everyday workhorse for a standard cooler.
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4 lb and XL packs hold cold the longest for big coolers, multi-day trips, and food delivery.
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XXL slim sheets lay flat across the top or bottom to chill a whole cooler evenly.
Get the most out of them
- Freeze them solid, at least 24 hours for the big packs.
- Pre-chill the cooler before you load it.
- Fill the air gaps. A full cooler stays cold longer than a half-empty one.
- Keep the lid closed and out of direct sun.
Packing smaller bags too? See our ice packs for lunch boxes, or browse all Kona ice packs.
Frequently asked questions
What are the best ice packs for a cooler?
The best cooler ice packs are dense and reusable, because mass is what holds cold. Larger 2 lb and 4 lb packs and XXL slim sheets stay frozen far longer than loose ice and leave no meltwater. Match the pack size to your cooler and trip length.
How long do cooler ice packs last?
It depends on size, cooler quality, and outside temperature, but a well-frozen 4 lb pack in a good cooler can hold cold for a day or more. Using several packs, pre-chilling the cooler, and keeping it closed all extend the cold.
Are reusable ice packs better than ice?
For coolers, usually yes. Reusable gel packs stay colder longer than the same volume of ice and don't melt into water that soaks your food. Ice can chill faster initially, so some people use both.
What size ice pack do I need for a cooler?
For a standard cooler, 2 lb packs work well. For large coolers, multi-day trips, or food delivery, step up to 4 lb or XL packs, and add a slim XXL sheet to chill the whole cooler evenly.
