Obanai Iguro Anime 20oz Tumbler With Straw And Lid

A vacuum insulated steel tumbler with double-wall construction is a popular type of drinkware that combines durability, functionality, and excellent temperature retention. These tumblers are often made from stainless steel and feature a vacuum-insulated design, meaning there is an airless gap between two layers of metal, which helps keep your drinks hot or cold for extended periods