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.

As a Colorado transplant who spends most weekends exploring Colorado's trails, I always seek gear to keep up with my outdoor adventures.These Cooler Shock Reusable Ice Packs have become an essential part of my pack. They ensure that my food and drinks stay refreshingly cold, whether I'm summiting a 14er or just enjoying a picnic in Denver's Cheesman Park.Here's why I'm giving them a 5-star summit salute:Long-Lasting Chill: These ice packs are like the Energizer Bunny of cold—they just keep going and going. They stay frozen for an impressively long time, keeping my more extraordinary contents chilled for hours, even under the intense Colorado sun. No more lukewarm trail snacks or melted sandwiches to dampen my summit celebrations!Durable and Reusable (Just Like My Favorite Hiking Boots): These ice packs are built to last. They're made from rigid, puncture-resistant material that can withstand the bumps and jostles of a day on the trail. Plus, they're reusable, which aligns perfectly with my commitment to sustainability and minimizing waste.Versatile Sizes for Every Adventure: The variety of sizes is perfect for different needs. I use the larger ones for my main cooler when I'm car camping or heading to a Rockies game and the smaller ones for my lunch bag or to keep individual drinks cold on those long hikes.Quick Freeze for Back-to-Back Adventures: These ice packs freeze relatively quickly, so I can easily re-freeze them overnight after a day on the trail and be ready for my next adventure. No more waiting around for slow-to-freeze ice blocks!No Messy Leaks (Unlike My Attempts at Backcountry Cooking): Unlike traditional ice, these packs don't leak or create a watery mess in my cooler. My food stays dry, my cooler stays clean, and I can focus on enjoying the scenery instead of cleaning up a soggy mess.A Few Minor Considerations: While I'm pleased with these ice packs, there are a couple of minor drawbacks that I've seen mentioned in other reviews:Condensation: Some users have reported that the ice packs can form condensation on the outside. I've noticed this, but it's easily managed by wrapping the packs in a thin towel or placing them in a waterproof bag. It's a small price to pay for the convenience and long-lasting chill they provide.Not as Cold as Regular Ice: While these ice packs stay cold for a long time, they might not reach the same freezing temperatures as regular ice. However, they're sufficient to keep food and drinks refreshingly chilled on even the hottest summer days.Overall: If you're looking for reliable, long-lasting, and reusable ice packs for your cooler, the Cooler Shock ice packs are an excellent choice. They're a must-have for hikers, campers, picnickers, and anyone who wants to keep their food and drinks cold on the go. As someone passionate about exploring Colorado outdoors, these ice packs have become essential to my gear, ensuring that refreshingly cold snacks and beverages always fuel my adventures.

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!