Review on CleverMade Medium-Sized Reusable Ice Packs - Long-Lasting And Convenient Solution For Insulated Coolers & Lunch Bags - Keep Your Food And Drinks Cold Without The Need For Ice - Set Of 4 by Chris Wilson

These are a neat idea and I love that they are smaller and easier to store than the block style ice packs. All you do is fill them up and then freeze them. We did find they freeze better if you have the room to lay them flat in the freezer. They don't last as long as the block style ice coolers, but they are good enough for taking your lunch to work or going on a picnic. They are easy to clean and lay flat for storage when they are empty.