n insulated cooler is pretty cool, but a cooler bag made out of 18 recycled water bottles? That?s the Tarana Large Superthick Cooler Bag - and it?s super sustainably cool, which is even better! Cooler shell is made from recycled water bottles, about 18 bottles per bag Wipeable fabric Insulated cooler with water-resistant liner Stretch cord on top secures a jacket, blanket or towel Back zippered accessory pocket/ luggage slip Daisy chain to hang additional gear Versatile shoulder strap Bottle opener attached Cool time up to 24 hours Holds 24, 12oz cans