Bests & Worsts Reviews from Amazon

I bought these due to the great rating on Amazon and other websites. They do not live up to the hype. Mine feel like they are nothing more than water in a plastic case. I use two in my small lunchbag that I bring into work (cool office environment). They are mostly melted within 4 hours. I also had them in a smaller container to keep my pumped milk cold. They also melted within a few horus in that bag. They sweat and get the surrounding material/items wet. I cannot recommend this product.