The FRIO Insulin Cooler Duo Wallet is a specialized cooling storage solution designed to safely carry and maintain the temperature of two insulin pens. This black wallet features innovative cooling technology that keeps insulin at safe temperatures without requiring refrigeration or ice packs. Key features: • Holds 2 insulin pens securely • No refrigeration or ice packs needed • Reusable cooling technology • Compact and portable design • Water-activated cooling system • FDA approved materials The FRIO Duo Wallet uses an evaporative cooling process activated by water to maintain safe temperatures for insulin storage. Once activated, it can keep insulin at appropriate temperatures for several days. The wallet is reusable - simply re-soak in water when needed. Made with durable materials that are safe for medical use, this portable cooling solution is ideal for travelers and anyone who needs to transport insulin while maintaining proper temperature control.