Elevate your drinking experience with this stainless steel vacuum coffee tumbler, available in 360ml, 480ml, and 600ml sizes. Designed for daily use, this insulated travel mug combines modern aesthetics with practical performance—including a secure lid locking system that prevents leaks and spills, even when tossed in a bag or carried on the go.

 Unlike typical flip-top lids, this tumbler features a built-in locking mechanism that allows you to manually switch between lock and unlock positions with a simple slide. Once locked, the lid remains tightly sealed—ideal for commuters, students, and travelers who want to avoid accidental spills in backpacks or cup holders. When unlocked, the lid opens smoothly for convenient one-handed drinking.

 Its distinctive square bottom design offering not only a modern, eye-catching silhouette but also easy to hold, while the swiveling carry handle adds portability without sacrificing style. Whether you prefer hot coffee or iced tea, this double-wall insulated cup keeps your drink at the perfect temperature and your routine mess-free.