The Frio insulin cooling case provides a highly effective, yet low-cost solution to the problem of keeping insulin at a safe temperature without the need for ice or refrigeration. The process is simple, to activate the wallet simply immerse it in cold water for 5-15 minutes. The crystals sealed inside the panels of the wallet then expand into a gel, which then remains cool for a minimum of two days, even at temperatures of 100 degrees fahrenheit. The Frio uses the process of evaporation for cooling and can be reactivated over and over again by just re-soaking it. The Frio cooling case is a great way to protect your insulin in a grid down situation. To learn more about the Frio cooling case visit frioinsulincoolingcase.com.