Isolator Fitness 12 oz (4 Pack) ISOBRICK - Reusable, Long Lasting, Lunch Bag/Cooler Ice Packs

These are a great size ice pack. They worked great for me after surgery for 2 hip and 1 knee replacement. They stay cold practically through the night and can be used over and over.

These are the best ice packs I've ever used. This my second set because my first set is a few years old and I lost one and another one was squished. I use these with a Isolator bag and together they keep my food cold all day. Even when I've used the ice packs in a small ice chest, they worked much better than the hard plastic blue ice packs. The only caveat is that these packs are soft and can be squished when not frozen if they are handled without care.

These things are the best to pack in with your foods. They are smallish (depending on the size you bought) and flat. I’ve had mine for over 3 years and they are still going strong. They last a few hours (in my case how I use them 2-4 hours). They are not super long lasting but for lunches and short travels they work well.

These are great for the Isolator lunch bag system and keep cold for extended periods of time. The only downside is they get lumpy and wear down quickly so I'm already on my second set in about a year. My husband uses the lunch bag a few times a week so this is not something that is overused by any means, they just wear out after little use.

Have been buying these for years. They stay cold for a long time and they have lasted for many, many years before needing new ones. They fit perfect in my isolator fitness food bag.

Solid product for the buck and does the job. Much more durable than the shitty 6 pack bag ice packs that leak the day you take them home. These stay cold all day and don’t have liquid inside but more a gel block.

They have been working great and staying cold for 10-12 hours

I have used ISO products for the past 3 years and these are by far the best "ice packs" to use for lunch bags whether its a bag by ISO or not! I have recommended their products to many of my friends and they can say the same. My partner, brother-in-law and I use these packs for our meal prep duffle bags and our meals stay cold for up to 8 hours, INCREDIBLE!