Zojirushi is a great brand! I remember the little elephant logo from when I was little and used a battery operated jug that included a little pump :)

This mug sized at 28 ounces, is a versatile and reliable choice for keeping your beverages at the desired temperature. Whether you prefer hot coffee or iced tea, this mug excels at maintaining the temperature of your drink for an extended period. The flip top seal design ensures a leak-proof experience, making it a convenient option for kids to use at school. Its stainless steel construction not only provides durability but also adds a sleek and modern aesthetic. 

Make sure you get the right fit! There are other size options in the same family. 
Love it! Highly recommended for anyone needing a hot/cold mug option.