For those on the go, the h2 Mizu Travel Mug 390ml is the go! Designed to keep you hydrated from morning to night, it is inspired by the Japanese word 'mizu', meaning water in English. It is the perfect travel companion, and will fit in most standard sized cup holders. Constructed for functionality, the h2 Mizu Travel Mug is crafted from durable stainless steel with an insulated double wall interior to help maintain temperature.your liquids will stay hot for up to 6 hours or stay cold for up to 6 as well! Whether you're a coffee lover, smoothie connoisseur, or just need more water, the travel mug is rust resistant so that you can reuse it again and again. The h2 Mizu Travel Mug 390ml is an essential item for every person.