Designed as a replacement lid for Hydro Flask wide mouth water bottles, this flip lid is compatible with 12oz, 16oz, 18oz, 20oz, 24oz, 32oz, 40oz and 64oz sizes, offering a convenient upgrade for everyday hydration. The one-hand flip-top design allows quick opening with a simple flick, making it practical for driving, workouts, office use, or any on-the-go routine, while the flip cap stays securely positioned during drinking. A wider spout supports fast water flow for efficient hydration when you need it most, and the flexible handle provides comfortable carrying or easy attachment to bags. Made from BPA-free, food-grade materials, it is designed to help maintain a clean, odor-free drinking experience, while upgraded sealing structure is engineered to help reduce the risk of spills or drips during transport. The smooth surface and simple structure make cleaning straightforward without complicated corners, supporting easy daily maintenance. Built with durable materials for extended use, this replacement lid offers a practical way to refresh your bottle setup and support a more convenient hydration lifestyle. Before purchase, please confirm your bottle brand, model, and mouth size to ensure compatibility.