The Sonoco ThermoSafe PolarPack Gel Packs are reusable cold packs designed to keep items cool during shipping and handling or in coolers. Made by ThermoSafe, a trusted brand in the industry, these gel packs are durable and effective for maintaining the temperature of perishable goods. The 4-pack is ideal for businesses and industrial use, providing a reliable solution for transporting and storing products that require cooling.