Cooler ShockReusable 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

These were purchased to fit in the 16 quart Coleman hard-sided cooler. They fit perfectly. I put one on the bottom and one on top. I purchased the lunch sizes for the sides. Once the set-up is done, and they are frozen, they are easy to use and keep your cooler COLD! They work well!SET-UP: you have to fill them up with a specific amount of water. You need to use the funnel (comes with one) to fill them up. You should measure out the correct amount of water to fill them, but I have filled these in other sizes and once you've done it enough times you know about when to stop. If you aren't experienced with when to stop, then definitely measure out what you need so you have enough in there and don't overfill. Once they are filled with water, you squeeze a stopper in the top and close it tight all the way. The stopper can be difficult to push in, but make sure it's down as far as you can get it before trying to put on the cap. Then put them in the freezer FLAT. Unless you are looking to purposely shape them, keep them flat for best use once frozen. They were frozen by next morning and ready to go.USE: I put two of these and two lunch size in a hard-sided cooler and they kept the items cold for 36 hours. Impressive. They were about half to 2/3rds melted when I put them back in the freezer, flat again, and then next morning, again they were ready to use.TIPS:1. If you have an extra freezer in your basement or garage, I would keep these in various sizes in there for use in coolers. I also have the largest size that I put in a big Trader Joes soft sided cooler bag for car trips as well. I have packed groceries in and drove 7 hours and popped them in the fridge when got to destination and everything was fridge cold still.2. If you have a better funnel, use that. The one it comes with is small and flimsy, but works.PROS:THEY WORK!! Enough said! Worth the price - which is decent - and effort to set up! Save you money on purchasing food on the road. Have healthy foods from home without the restaurant, convenience store up charge!CONS:You have to put in a little work to get them "made" and they need to go into the freezer for 24 hours (will be ready in less if needed but plan on at least 24), so don't buy these last minute. Prepare for their use.They can take up room in your freezer and get in the way, so best if you have a separate extra freezer to store them in.

I bought these reusable ice packs for my husband to take to work, and they’ve been a game-changer! They’re long-lasting and keep his lunch cold throughout the day, even on the hottest days. We’ve also used them on camping trips, road trips, and at the beach, and they’ve worked perfectly every time.They’re super easy to use—just freeze them and pop them in his lunch box or cooler, and they stay cold for hours. The packs fit easily into all kinds of bags and containers, and they’re very durable. I love that they’re reusable, which makes them both eco-friendly and cost-effective. My husband is really happy with them, and it’s been great for keeping his food fresh! Highly recommend them for anyone who needs reliable cold storage on the go!

This is an incredible product. It comes with a powder. You add water and it turns into a gel. It takes a while to freeze it, but once you do it is frozen for a very long time. I packed up my black Subaru at 11:00 a.m. on an 80° day with a standard igloo cooler drinks and food and four of these packs. I pulled into work and the cooler stayed in my car with the food and drinks and pack. When I got back to my car after this sunny day everything was still cold and in fact was cold the next morning. These packs are truly incredible and absolutely worth the money.

When I ordered these with the "some assembly required", I was prepared to be really irritated that I had to do the work to save them the money. But what I found was, it was actually fun putting it together and I was afraid of potential leaks, but out of the 5 I ordered (lunch size), all have had no issues whatsoever, which is surprising as I am not the IKEA assembly guy at all. I expected it would fail and it didn't.... not one drop spilled.The ONLY reason I gave 4 stars instead of 5 (should really be 4.3 ish) is their claims of 8 hours of "as cold as ice". That may be the case if you are using them at room temp, but I bought them to keep beers cold for a 4-5 hour golf round in 95 degrees and for that, it worked, but was dying after 4 hours and the beer was maybe 40 degrees... I prefer 34-36 degrees. Yes I am a beer prima donna. Skeptical on the 8 hour claim, and that is why I did not give 5 stars. But for what I needed, it worked great!!! Maybe the larger versions were the 8 hour ones. Meh.But these things coming out of a very cold freezer will burn your hands, be very careful! They are so flipping cold! Protect your hands if using a very cold freezer or you may get frostbite. If you doubt the colder than ice claim, put it in a deep freezer and lose a few fingers if you are not careful taking it out...Overall, no issues at all with the lunch size pack of 5. Durable, convenient, and definitely way better than ice, and other non-ice solutions we have used. And for me and my wife the money was well spent for sure.For 5 stars, and this is not just for this product, promise less and deliver a bit more. But this is pretty awesome compared to a lot of other products we have tried. We are considering the larger versions, based on the performance of the smaller items and may update this review based on that. May yet get 5 stars, we will see.8.8/10 Have recommended to friends and family. Place this in the best triple walled cooler and you may have a cold beer next week... or at least a 40 degree beer....