Improved Thermal Storage Provides strong coldholding performance supported by capacity thermal storage and coarse crystal technology, ensuring reusable cooling that stays effective over multiple uses without degradation. Smart Fill Technology Engineered with a containersafe fill guide and nooverfilling instruction to balance waterabsorbing expansion during freezingphase adjustment, while accommodating hydrationtriggered volume increase through an expansionallowance framework for dependable function. LongLasting Chill Effect Delivers extended cooling performance with advanced coldretention crystals that work seamlessly with evaporative fans, improving air cooler efficiency and supporting repeateduse functionality. Easy to Use Designed to simplify lunch bag cooling with an intuitive freeze activation approach and performance cooling crystals, offering a reliable and easytouse solution for maintaining desired temperatures effectively. Use scenarios Lunch bags and meal totes: keep perishable foods fresh and safe until mealtime at work, school, or onthego. Portable coolers for outings: maintain beverages and snacks at the right temperature during picnics, road trips, or gym days. Outdoor events and evaporative cooling setups: pair with evaporative fan systems to enhance cooling performance in hot conditions.