Yeti Ice is technically a phase-change material designed to freeze at a lower temperature (28°F / -2°C) than standard water ice (32°F / 0°C). In 2026, its primary advantage is that it stays colder longer and can even "refreeze" melted water around it, extending the life of your regular ice. It is also designed to perfectly fit the dimensions of Yeti coolers, maximizing storage space. However, it is not a complete replacement for real ice; rather, it acts as a "supplement" or "booster." While regular ice provides more immediate cooling through surface area, Yeti Ice helps maintain a deep chill for multi-day trips. For a simple day trip, real ice or standard frozen water bottles are often sufficient, but for long-haul expeditions, the durability and lower freezing point of Yeti Ice provide a noticeable performance edge.