Its advanced flowstate™ technology prevents leaks and spills, ensuring your drink stays at the right temperature. The flip straw lid provides effortless access, while the no spill design keeps your drink secure on the go. What is everyone doing with their stanley cups where leaking is a problem I am not hating, i just genuinely do not understand why i see so many reviews on amazon about the leakage of the cup. Durable, convenient, and perfect for life on the go However, like any component subject to regular use and wear, the gasket may encounter several issues over time.
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