PackIt is the first freezable (and foldable!) personal cooler that keeps anything you pack colder, longer- up to 10-hours. PackIt has a patented eco-gel built permanently into the liner, eliminating the need for melting ice or bulky gel packs completely. Yogurt, milk, cheese, even leftovers from the night before stay fresh. The cold eco-gel completely surrounds the bag so food stays colder five times longer than regular lunch bags. PVC/lead free, earth safe and reusable. Store your folded PackIt in your freezer until you're ready to use.