The Refrigerator in a Bag! 
RE-FREEZ-R-BRIX™ is a block of rigid foam that holds its shape frozen or thawed and is reusable. These refrigerants are non-toxic, sealed in a heavy plastic pouch, and are rated the best in foam refrigerants. Other products just don’t compare.

• Prevent thawing… Keeps frozen products chilled for an extended period of time.
• Protects against freezing… When packaged in properly insulated containers, warmed RE-FREEZ-R-BRIX^™ release heat, keeping perishables from freezing.
• Protect from warming… Keeps perishables requiring a temperature range of 32°F to 60°F at a safe, uniform cool temperature for over 14 days.