Cooler Shock Reusable Ice Packs for Cooler - Long Lasting Cold Freezer Packs for Coolers and Lunch Boxes - Cooler Ice Packs for Camping Gear, Fishing, Road Trips, Beach Must Haves
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Availability:
Only 5 left in stock, order soon!
Arrives
Sunday, Oct 25
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Material Type: Add Water
Style: Small - 5pk
Features
- 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 cold all day.
- EASY TO USE - Filling our thin reusable ice packs is easy freezy! Simply add water once using the included funnel, shake, plug, screw the cap on & freeze until ready to use
- SMALL & MIGHTY - Nylon-reinforced for durability, these 6.5" by 7.5" freeze packs are the perfect size ice packs for lunch boxes and a versatile oprtion for an insulated cooler tote or backpack cooler
- SAFELY COLD - Use these small ice packs for lunch bags and small coolers to keep your favorite yogurt or salad properly chilled for hours at work, school, or on an outdoor adventures!
- THOUGHTFUL GIFTS - If your loved one is an outdoorsy type, youll want them to have everything they need when they go off-grid. Our reusable ice packs for coolers are essential camping gear for anyone planning a getaway!
Description
Small 5-pk Medium 4-pk Large 3-pk with handle Clear Hardpack 2-pk Grey Hardpack 3-pk Small Gel Packs 2-pk
Brand: Cooler Shock
Color: Silver
Material: Add Water
Package Information: Box
Capacity: 0.5 kg
Product Dimensions: 1"D x 6.5"W x 7.5"H
Item Weight: 9.6 ounces
Special Feature: Portable
Included Components: funnel
Recommended Uses For Product: Camping Gear, Fishing, Road Trip, Beach, Lunch Boxes, Backpack Cooler, Work, School, Outdoor Adventures See more
Brand Name: Cooler Shock
Included Components: funnel
Recommended Uses For Product: Camping Gear, Fishing, Road Trip, Beach, Lunch Boxes, Backpack Cooler, Work, School, Outdoor Adventures
Model Name: Just Add Water Ice Packs
Number of Packs: 5
UPC: 854850006251
Number of Items: 5
Unit Count: 5 Count
Manufacturer: Cooler Shock
Manufacturer Part Number: 43237-2
Model Number: CS-FRZPK-S5
Capacity: 0.5 kg
Item Dimensions D x W x H: 1"D x 6.5"W x 7.5"H
Item Weight: 9.6 ounces
Size: Lunch Box Size 5-Pack
Chamber Depth: 6.5 inches
Container Type: Box
Additional Features: Portable
Color: Silver
Material Type: Add Water
Product Care Instructions: Freeze when not in use
Insulation Material Type: Polyethylene
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Oct 25
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Material Type: Add Water
Style: Small - 5pk
After using these in a not so hot June/2026 in southern Ontario, I do have an opinion on this product. I’ve typically used ice packs from hardware stores and premium brands such as Yeti. I find they are all similar. I tried the Arctic Ice Tundra brand, which claims longer frozen life, but wasn’t overly impressed. So I have Cooler Shock a try. I can definitely say, these last longer. I have often thrown similar sized Yeti packs into my cooler along with these Cooler Shocks. The Yeti’s turn back into liquid form, while the Cooler Shock become like soft mushy ice, but still emanating plenty of cold power from their packs. I’ve repeated this test several times, also making sure both brands of packs had been frozen for days, to keep things fair. So, I am impressed with this product. I can’t say this is a scientific breakthrough of sorts, or should be newsworthy. But, the Cooler Shocks last a little longer than comparably sized cooler packs from other brands I have tried, especially Yeti, which is one of my preferred go-to brands just because it’s a quality made ice packs. As such, I can’t do much else but recommend these. Granted the product puts you in a situation where you have to activate the function on a one time only basis by adding the correct amount of water per pack. But they do include a cool little funnel with the packs you get. When they arrive, they are dry and empty of liquid. They contain some crystal -like substance in each bag, heard by shaking it. One filled with tap water to the correct volume, they have made a clever cap that permanently seals the nozzle (twice actually) to prevent water from escaping. I like the sizes they come in. The small guys are perfect for small lunch style hand carry coolers and of course the large ones are the ones you put in your cooler chests for camping or the like. Whether these were invented by a scientist, or entrepreneur, I don’t really care, as long as they remain safe to use and work longer as I have experienced. They do last longer from my experience and when they do eventually become soft, are absolutely fantastic to use as ice-packs on injuries against different parts of our bodies, as they can be shaped to the contours around bone and the curves and shapes we all have. Just wrap in a microfiber cloth. I’m giving these my thumbs up and am recommending them.
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Reviewed in the United States on June 24, 2026 by DAXX
Material Type: Add Water
Style: Small - 5pk
I bought these because my fiance and I needed to start bringing lunch into work as good prices are just getting ridiculous to eat out. So, I bought the cooler pack and the lunchbox pack. These packs are amazing! Differences in use. I work in an office with limited fridge space and my fiance is someone who works outside a lot so a fridge isn't always available. So, saying this!!! The cooler packs are his, they keep his food cold for at LEAST 10 hours. By the time he is home his lunchbox isn't warm inside but it isnt as cold, but keep in mind he leaves his lunchbox in a hot car. I'm sure in the winter it'll be MUCH better, but it keeps his food cold for when it's time to eat and that's all that matters. Which he doesn't leave the lunchbox inside his hot car, the lunchbox is still very much cold when he brings it home. My experience with my lunchbox pack, again. My situation is different. I am inside a building where there's AC in the summer and heat in the winter. Pampered over here. So my lunchbox sits on my desk and I take my food out as I want it throughout the day. I USUALLY have a breakfast yogurt, a energy coffee drink and a protein shake. Sometimes I have veggies and fruits and hummus as well. The ice packs, I use all five, freeze my protein shake LOL! Sometimes my yogurt. I can put something in there that's warm and by the time I want it, it's COLD. My lunchbox feels like a literal fridge sometimes a freezer. Idk if it's the combination of the ice packs and the lunchbox, but I am VERY satisfied.
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Reviewed in the United States on August 26, 2025 by Claudia Yullisa
Material Type: Add Water
Style: Small - 5pk
These are hands down the best ice packs and I've tried out about 30 types. I use these every day for migraines. They last for several days in a well made cooler like yeti or igloo. They last maybe 2 days with a couple of them in fabric coolers in the open they last several hours. I shaped them more into a roll shape to use behind my neck. I actually got frostbite last summer from one of them they are that cold. Of the 5 of them I bought several years ago, only one has finally leaked and that's years of everyday use
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Reviewed in the United States on May 19, 2026 by Kielha
Material Type: Add Water
Style: Small - 5pk
These cooler ice packs work great! I used to throw Ziploc bags filled with ice from my freezer into my cooler, but I would always end up with a pool of water at the bottom. Soggy food is not appetizing! The description states that these cooler packs are actually colder than ice. While I didn’t measure the temperature myself, I did notice that my fingertips seem to “burn” more from these packs than from regular ice, so they definitely feel extremely cold. The reason I’m giving them 4 stars instead of 5 is that I don’t think they stay cold for the full 8 hours advertised, even when used in my Coleman Pro cooler. That said, I may need to pre-cool my cooler before using the packs, as I’ve read that doing so can help with ice retention. One thing I really like is that I can strategically place the packs between and on top of my food to maximize cooling. They’re also much more convenient and create far less mess and cleanup compared with using loose ice. My mom liked them so much that she bought the 5-pack for herself. She uses them in her cooler bag when she goes grocery shopping. Overall, I highly recommend these for anyone who wants the cooling power of ice without the hassle and mess. I would definitely buy them again, and I’m even considering getting the larger hard-plastic version for my other cooler.
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Reviewed in the United States on August 24, 2026 by TeyS.
Material Type: Add Water
Style: Small - 5pk
well worth the money. I purchased a 5 pack back in 2023, and have used them every day for work since I operate a commercial vehicle I like my food to stay cold and these fit the bill. After 3 years of every day use the outside was starting to become a little smily, so it was time to retire them for a new set. Thank you for a great product that definitely stands the test of time.
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Reviewed in the United States on September 26, 2026 by Bretta Anderton
Material Type: Add Water
Style: Small - 5pk
Stays frozen cold for hours. Very easy to set up and use. Lining the sides of my lunch box cooler is easy and leaves plenty of room for beverages and food. I love them so much I recommended them to several of my coworkers, who also bought sets.
Reviewed in the United States on September 19, 2026 by David Najarian
Material Type: Add Water
Style: Small - 5pk
If like me, you have been waiting for Cooler Shock to release a small-size version of their cooler pack for lunch bags, wait no longer - this is what you need in your life right now. Two months ago after I bought the medium pack (4 Mid Size Cooler Freeze Packs 10"x 9" - No More Ice! Cooler Shock Replaces Ice & Reusable. You Add Water & Save!) and discovered arguably the best cooling pack on Amazon (don't take my word for it, read the reviews over on that product page), I came across a comment left by a Cooler Shock rep that they are working on a small size suitable for lunch packs, and I have been waiting patiently ever since. The medium pack is unparalleled in its performance - after an entire day at the office, I'll come home and my drink is still frozen. The issue that I and many others had was that the medium pack is a tiny bit too large in both dimensions for lunch bags - I had to fold the edges in to get it to fit. Well the solution is finally here. This lunch bag size cooling pack is the best of all worlds: - It uses the same tried-and-true material as other Cooler Shock packs: a phase-change material that can absorb an enormous amount heat without itself warming up. - The screw cap seal is the easiest to set up by far: prepping 4 medium packs with an iron took me almost an hour; by comparison, I had all 5 small packs set up in 10 minutes. - Unless you have a lunch bag for ants, this size will fit all lunch bags. If you can put a typical-sized tupperware in your lunch bag, this cooler pack will fit. - I've used it for a few days now and can confirm 10 hours of cooling. If you work a typical 9 - 5, that's more than enough to keep food at a safe temperature all day long from fridge (morning) to fridge (evening). It won't have the same 24 - 48 hour cooling duration as the medium pack, but that's overkill for lunch bags anyway. The only downside I can think of: - Not ideal for use in ice chests. But that's what the medium and large versions of the Cooler Shock are for anyway. If you have used Cooler Shock's other packs in the past, you know how good they are, and you won't be disappointed in the lunch bag packs. ==EDIT== I've now tested the Cooler Shock in an insulated lunch bag, sitting in a room kept at 70°F, monitored with a thermocouple - see the results in the picture. The ice pack started from the freezer at 4°F, reached 32°F at 10.1 hours, and reached 40°F (the maximum recommended temperature for keeping food refrigerated) after 12.2 hours - corroborating reviews from others reporting the ice packs lasting up to 12 hours.
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Reviewed in the United States on January 16, 2018 by Steve C
Material Type: Add Water
Style: Small - 5pk
3 out of 5 stars, because only 3 out of the 5 in the pack had enough powder to turn to gel. 1 seemed like it had no powder, and water didn't gel at all. Another only had enough powder to partially gel.
Reviewed in the United States on July 1, 2026 by Amy B