PolarPack® refrigerants provide reliable temperature protection for the safe transport of food products, pharmaceuticals, diagnostic specimens, and other temperature sensitive products. Available in a broad selection of styles anda multitude of sizes, the Sonoco® Thermosafe reusable PolarPack gel packs are a safe, non-toxic, and economical alternative to wet ice. Great for camping, shipping, and everyday use, use PolarPack gel packs with coolers, lunch bags, insulated containers, medical transporters, and other cold chain solutions. Enclosed in durable 4.1 mil polyethylene film, these gel packs are designed to be long lasting and leak proof. PolarPack refrigerants change phases at 0 degrees C (32 degrees F) and return to gel state upon thawing. A leading global provider of temperature assurance packaging, Sonoco Thermosafe offers a wide selection of reliable temperature protection solutions that ensure safe transport of food products, pharmaceuticals, biologics, vaccines, and other temperature sensitive products... because every degree matters.