The PPSU straw cup creates an easier drinking experience. Featuring a flip-top lid with a one-touch cap and lock, it's simple for babies to use. Grosmimi bottles use PPSU, a durable, high-temperature-resistant, and FDA-compliant material. Its '+ CUT' design prevents leaks, allowing usage while sitting or lying down. Designed for ease, all parts separate for quick cleaning and reassembly.