I like the sweat free concept of this product. Essentially, it is an ice pack inside of a sleeve that absorbs the moisture. THe ice pack itself is kind of cheap, just frozen water inside a plastic bag, it looks like, and the ice pack gets rock hard. I'm used to the flexibility of gel packs. But the eco concept of the sleeve being made with recycled plastic bottles is interesting. $12 for an ice pack is steep but if the features are important to you and you can afford it, then it's worth it.