Keep your drinks hot or cold for hours with this Thermos 0.4L Vacuum Insulated Mobile Mug. Its one-touch open design allows for easy access on the go, while the special inner lid structure prevents leakage. Made with high-quality materials in Japan, this mug ensures durability and long-lasting insulation. Stand out with its navy yellow color. Enjoy your drinks all day long with the Thermos 0.4L Vacuum Insulated Mobile Mug!