The Medicool Insulin Protector Case keeps insulin cool for up to 16 hours. Comes with two refreezeable cooler packs. Use one while you freeze the other. Carries up to two bottles of any brand insulin Provides pockets for syringes and alcohol swabs Dupont Cordura? Plus material. Most doctors recommend insulin be kept refrigerated to ensure its maximum potency. When you use the Medicool Insulin Protector you can take a trip across country, knowing your insulin is cool and safe to use. The compact Protector is ideal for daily use and trips where a minimal amount of supplies are required.