Cooler Ice Packs Reusable Ice Packs for Coolers Long Lasting Freezer Packs for Cooler Bag, Lunch Bags, Cooler Backpacks

These worked as advertised staying frozen for one whole day (and really cold for the second day) in hot weather. I like that they're thin as they fit easily in the freezer and cooler. They seem pretty sturdy and didn't leak or get slimy. For the money and convenience, I'll be gradually replacing our bulky old freezer blocks with these.

Great size, they fit well in coolers and stay cold for a long time.

Bought I bring frozen food to my other home out of state to pack in my luggage. Initial set up to freeze the packs was super easy and they kept frozen and helped keep my items cold and frozen as well. No thawing

I bought these to use for my kid's Pottery Barn Cold Pack style Iunch boxes. They don't quite fill out the entire bottom of the lunch box, but enough of it to keep the items cool until lunch time. I use them with stainless steel bento boxes for better cooling. If you leave them in a lunch box out in the sun, they probably won't keep their cool for more than 5-6 hours (depending on how insulated your lunch box is). My kids come home with them completely defrosted by the end of the day 9 hours later, but it's still cool (not freezing cold) to the touch.

Got these as a replacement for another set of reusable ice packs. We love them, and use them all the time. Love that they're not bulky, and stay cold for a very long time. Highly recommend.

These were purchased for a trip to Florida and they held up very well and kept food and drinks cold for quite a bit longer than ice. They are also a lot less messy than using ice. These seem to be made of a good material and appear that they will last a long time.

These are more or less what I was trying to find: a flat reusable gel ice pack. They seem ok and definitely keep stuff very cold for a while in my cooler, even when it was in the 90s. However, one already split and leaked after only three uses. It's not like I abuse these either, they basically go from the cooler to the sink to hand wash, then dry flat, then get frozen flat, then go in the cooler. They all show signs of stress in the material so I expect them to all break soon enough. I'm disappointed.

Stay frozen/cold a long time!