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Cooler Shock Reusable Ice Packs for Cooler - Long-Lasting Cold Freezer Packs for Coolers & Lunch Bags - Cooler Ice Packs for Lunch Box, School, Beach, Fishing, Camping Gear

4.6 4.6 out of 5 stars 25,813 ratings
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Cooler Size 3-Pack

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About this item

  • LASTING COLD - Our durable ice packs for coolers and lunch boxes are colder than ice at 18° F (-8° C) to keep your favorite foods and soft drinks chilled for up to 48 hrs.
  • EASY TO USE - Filling these thin reusable cooler packs is easy freezy! Simply, add water once using the included funnel, shake, screw cap on, & freeze until ready to use.
  • STRONG - Robust and resilient, these cooler and lunch box ice packs are nylon-reinforced for seamless freezer-to-lunch bag trips.
  • COOLER SIZE - This large ice pack is perfectly designed to keep food and drinks cold inside beach bags, picnic baskets, coolers for breastmilk storage, and more.
  • THOUGHTFUL GIFTS - If your loved one is an outdoorsy type, you’ll want them to have everything they need when they go off-grid. Our reusable ice packs for coolers are essential camping gifts for anyone planning a well-stocked getaway!

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Product Description

Colder Than Ice

Cooler Shock vs. Regular Water

Ice starts out at freezer temperature and will warm fairly quickly to its melting point (32 degrees F). Once at melting point, the ice will stay at the same temperature during the whole process of melting. After fully melting, the liquid starts to warm normally again.

Cooler Shock ice packs also start out at freezer temperature, and will warm pretty quickly, but it's melting point is at a much lower temperature — 18 degrees F. During the whole process of melting, Cooler Shock stays at this lower temperature. This lower melting point means that when ice begins melting and warming in your cooler, Cooler Shock packs still stay cold, even as they begin to thaw.

Frequently Asked Questions (FAQ)

  • Do I need to refill the packs? No, you do not need to refill your Cooler Shock packs. Once they are sealed, they should not be opened or emptied.
  • Can I use my Cooler Shock packs in the refrigerator? Cooler Shock packs are expertly designed to provide the best cooling energy when frozen. We do not recommend using Cooler Shock packs in the refrigerator because your fridge does not usually get below 32 degrees F (a.k.a. freezing temperature).
  • What is the difference between the zipper packs and the screw cap packs? Essentially, nothing. The packs contain the same ingredients. The only difference is how you fill and seal the packs at home. The zipper packs require an iron to seal, whereas the screw cap packs use a funnel and cork (provided) to create a leak-proof seal.
  • How long should Cooler Shock packs be frozen before use? We recommend 48 hours for large packs, 24 hours for mid-size packs, and 12 hours for lunch-size packs for best results.

Reusable

Colder, Faster, Longer

Cooler Shock Premium Ice Packs (Large)

An ice alternative that takes “cool” to the next level, Cooler Shock reusable ice packs are designed to provide extended cooling at 18 degrees F that can last up to 48 hours.

Great for camping, picnics, boating, fishing, tailgating, and any perishable transport (both personal and commercial), Cooler Shock ice packs turn warm drinks ice cold in the cooler without turning your sandwiches soggy from melting ice. After a day of fun, just return Cooler Shock to your freezer and they'll be ready for the next outing.

DIY Reusable Bags — Just Add Water Once

Cooler Shock ice packs are shipped dry with a proprietary cooling gel mixture inside that turns into a solid block when frozen. Just add water at home, shake, and seal to create reusable ice packs that can be used over and over.

Choose from two closure types:

  • Screw cap with cork and included funnel for filling.
  • Zipper version that's sealed permanently shut with an iron.

Thin, Durable Construction

Cooler Shock's flexible, multi-layer bags are made with aluminum and polyethylene to keep the contents secure and reinforced with thin nylon to help strengthen the pack.

Measuring about one-fifth the thickness of rigid ice packs, Cooler Shock's thin walls (8 mils, or about 0.2 mm) freeze quickly without losing cold-transferring effectiveness.

Key Features & Specs

  • Large size ice pack — 10 x 14 inches
  • 1 large pack replaces 6 pounds of ice
  • Shipped with dry gel mixture — add water and seal at home
  • Screw cap closure with cork and included funnel
  • Each pack requires 56 ounces of water (7 cups)

Cooler Shock Ice Alternative Outperforms Ice

Cooler Shock - Superior Cooling

Cooler Shock - Longest Lasting

Cooler Shock - Reusable

Cooler Shock - Affordable & Convenient

Superior Cooling

Cooler Shock's proprietary cooling gel mixture is more dense than ice and uses a scientific phase change formulation, providing a higher energy concentration for sustained cooling at 18 degrees F (read more below).

Cold Up to 48 Hours

When paired with a high quality cooler, Cooler Shock ice packs will keep your food and drink chilled longer — up to 48 hours for Large and Medium packs, and up to 8 hours for Lunch packs.

Reuse Over and Over

Return Cooler Shock ice packs to the freezer after using and they'll be ready for your next outing.

Affordable & Convenient

Cooler Shock ice packs will pay for themselves in just a couple outings (compared to the cost of 10 to 20 pounds of ice) — and no extra trip to the store.

Cooler Shock reusable ice packs—an ice alternative that far outperforms ice, saving weight & space.
Large Cooler Shock Medium Cooler Shock Lunch Bag Cooler Shock Cooler Shock Hard Packs
Large Cooler Shock Medium Cooler Shock Lunch Bag Cooler Shock Cooler Shock Hard Packs
Customer Reviews
4.4 out of 5 stars
3,279
4.6 out of 5 stars
25,813
4.6 out of 5 stars
25,813
4.6 out of 5 stars
1,844
Package Type Soft pack, flexible Soft pack, flexible Soft pack, flexible Hard pack, ultra-durable
Size 10 x 14 inches 10 x 10 inches 6.75 x 7.75 inches 10 x 13 inches
Quantity Three packs Four packs Five packs Two or three hard packs
DIY — Add Water Once to Dry Gel Mixture
Screw Cap Closure
Zip and Iron Seal
Reusable

Product Description

Cooler Shock Cooler Accessories - Reusable Ice Packs

Product information

Technical Details

Additional Information

Feedback

Cooler

Cooler Shock Reusable Ice Packs for Cooler - Long-Lasting Cold Freezer Packs for Coolers & Lunch Bags - Cooler Ice Packs for Lunch Box, School, Beach, Fishing, Camping Gear


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Customer reviews

4.6 out of 5 stars
4.6 out of 5
25,813 global ratings

Customers say

Customers like the performance, ease of filling, size and quality of the ice pack. For example, they mention that it works better than any ice replacement packs, it's easy to fill and seal, and it doesn't take up much room. That said, they say it'll keep things cold for a long time and is better than loose ice cubes. Customers are also impresseded with the ease of use, saying that it'd be easy to set up and use.

AI-generated from the text of customer reviews

2,178 customers mention1,827 positive351 negative

Customers like the coldness of the ice packs. They say they stay icy cold, and keep food in a cooler. Customers also mention that the trays save on room and keep items cold for days. They also say the icing has amazing freeze power, and keeps items from melting.

"...These ice packs have proven to be a game-changer for keeping my cooler contents chilled and eliminating the hassle of leaky ‘blue ice’ blocks...." Read more

"...The ice pack, once frozen keeps the items in small coolers cold. If you have direct contact with the pack then, the items may freeze...." Read more

"...They keep everything in my ice chest nice and cold." Read more

"...These really do keep his water cold until he gets home...." Read more

1,466 customers mention1,442 positive24 negative

Customers are impressed with the performance of the cooler shock. They say it works better than any ice replacement pack they have ever used, and is extremely impressed with its performance. Customers also mention that the medium pack is unparalleled in its performance, and works good for long hunting trips.

"...In conclusion, these Cooler Shock Reusable Ice Packs are a fantastic investment for anyone who needs a reliable and long-lasting cooling solution..." Read more

"...They stay frozen for over 24 hours. Amazing product! Highly recommend!!" Read more

"I use the ice packs often and they work so great. They keep everything in my ice chest nice and cold." Read more

"...Worked like a charm!..." Read more

597 customers mention513 positive84 negative

Customers like the quality of the ice packs. They mention that they are durable, convenient, and better than ice. They also say that they help keep the Ice frozen and are great for ice baths or large coolers. Customers also say there is no more forgetting ice or having to make a stop for ICE.

"...The ease of assembly, exceptional cooling performance, and overall quality make them stand out from other options on the market...." Read more

"I use the ice packs often and they work so great. They keep everything in my ice chest nice and cold." Read more

"These ice packs are amazing...." Read more

"These ice packs are awesome. One large one lasted for 2 days. Even after that time it was still about half frozen...." Read more

497 customers mention380 positive117 negative

Customers like the size of the ice cubes. They say they're compact and fit easily everywhere. Some mention that the liners are thin enough to take very little room in the cooler while keeping the cooler contents cold. The packages are large, so be sure to check against size of your cooler.

"Gel formed well and froze as expected. Good size and fits well in freezer and coolers." Read more

"...great addition when we go camping this summer as well as they fit nicely in our cooler...." Read more

"...sided Trader Joe’s bag, not a hardshell cooler, to make it easy to pack inside my luggage. Worked perfectly!..." Read more

"...The large ones don't fit well (or at all) in 30qt or less. It will fit in the 30qt, but will be much more of a headache to work around...." Read more

457 customers mention414 positive43 negative

Customers find the product easy to use. They mention that the instructions are easy to follow, the product is easy to put together, and the flat shape makes it easy to place in between the food. Customers also appreciate the convenience and easy cleanup. They say the product folds back, making it easy for people to serve themselves.

"...The quality of these ice packs is top-notch. Though they require a simple assembly, the package includes everything needed, such as a funnel, rubber..." Read more

"...The flaps on the carrier folded back, making it easy for people to serve themselves and I didn't have to worry about how long any of the food sat..." Read more

"These are very good quality and easy to use! Love them!" Read more

"...But, all the info is clear and easy to follow. Even supply the funnel to fill with. They are larger than I would have liked...." Read more

242 customers mention220 positive22 negative

Customers find the filling of the ice packs very easy. They say it's simple to add the water and mix the powdered gel. Customers also mention that the packs are reusable and stay cold all day.

"Very easy to fill and freeze very well. Stays frozen for days." Read more

"...But, all the info is clear and easy to follow. Even supply the funnel to fill with. They are larger than I would have liked...." Read more

"...It was simple to add the water and mix the powdered gel though you have to be sure to work the powder..." Read more

"...These are super easy to fill up. Just put a cup and a half of water in there and put the plug in and screw the cap down (really hard!)..." Read more

818 customers mention519 positive299 negative

Customers are mixed about the durability of the insulated bottle. Some mention that it holds up really well, and is a reliable and long-lasting cooling solution. However, others say that they're not super durable, and if they get banged around a bunch, they seem like they would crack open. That said, some complain about the funnel and the plastic cap breaking.

"...Reusable Ice Packs are a fantastic investment for anyone who needs a reliable and long-lasting cooling solution for their cooler...." Read more

"...My only complaint is the edges of the packs are sharp and could easily cut skin if you are susceptible to cuts. They need to be handled with care." Read more

"...Also used them for road trips and they hold up really well, keeping the food just as cold as the fridge. Highly recommended." Read more

"...The "ice" lasts a very long time even without a lot of insulation surrounding it...." Read more

159 customers mention48 positive111 negative

Customers are mixed about the leakage of the outdoor recreation product. Some mention that it lasts a long time with no fear of leak or breakage, while others say that it started leaking after only a single season of use, with corners starting to leak. The funnel was not included, and the gel would seep.

"...The only downside was that they were fragile and would spring a leak...." Read more

"...or rips in packaging and eventually I found that they leaked out of where you fill them...." Read more

"...No longer have to put ice in lunch bag. Stays cold all day. NO leaks!!Makes ice in boat cooler last longer!..." Read more

"...Recently, they've started to get holes in them and leak fluid where they creased as they melted while traveling, so I am looking to replace them..." Read more

Amazing!
5 Stars
Amazing!
I was skeptical at first and proven wrong quickly. These little things had amazing freeze power. We used them for a three day camping trip. I packed these in with a small amount of ice. Three days later there was minimal melt and still ice left in the cooler. None of our milk products spoiled. We could camp and not worry about our food. The second time we used them it was to transport our favorite soup home while on vacation. We chilled the soup and packed it into a cooler with three of these. We added small amounts of ice to fill in the gaps. Two days later the soup had ice crystals on them. If you need ice packs with super powers, these are the ones!They have also been incredible for surgery recovery. I can depend on them for many uses!One note, they are a pain to fill but worth it once done.
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Top reviews from the United States

Reviewed in the United States on July 31, 2023
Style: Lunch Box Size 5-packVerified Purchase
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Reviewed in the United States on February 19, 2024
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Reviewed in the United States on March 12, 2024
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Reviewed in the United States on September 14, 2023
Style: All Purpose Size 4-packVerified Purchase
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Top reviews from other countries

Translate all reviews to English
Great product
5.0 out of 5 stars Great ice pack
Reviewed in Canada on August 30, 2023
Style: Cooler Size 3-PackVerified Purchase
mike cooke
5.0 out of 5 stars excellent product
Reviewed in Canada on September 30, 2021
Style: All Purpose Size 4-packVerified Purchase
mirko
2.0 out of 5 stars Molto caro
Reviewed in Italy on October 15, 2023
Style: All Purpose Size 4-packVerified Purchase
One person found this helpful
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AndyLpprt
2.0 out of 5 stars Gute Kühlleistung, empfindliche Beutel
Reviewed in Germany on August 24, 2021
Style: All Purpose Size 4-packVerified Purchase
One person found this helpful
Report
Tone
5.0 out of 5 stars Very impressed with these ice packs
Reviewed in the United Kingdom on August 13, 2021
Style: All Purpose Size 4-packVerified Purchase