Effortlessly stylish and undeniably practical, NOMAD features a 100% leak-proof lid and maintains temperature performance for up to 10 hours. Our first fully ceramic-coated vessel ensures the purest experience in taste. Featuring a seamless transition between interior and exterior appearance with color-matched ceramic coating. Flip Lid: The original NOMAD lid. This classic design features a convenient flip-top for easy sipping, while ensuring a leak proof seal. Compatible with all NOMAD colorways and sizes.