Introducing the Thermos Japan 350ML Midnight Black JNR-350M-Bk Vacuum Insulated Mobile Mug. This sleek and durable water bottle is designed to keep your drinks hot or cold all day long. With its double wall construction and vacuum insulation, it ensures maximum temperature retention. The 360-degree drinking lid allows for easy one-handed drinking, while the leak-proof and sweat-proof design makes it perfect for on-the-go use. Made with rust-proof stainless steel, it is easy to clean and built to last. Stay hydrated in style with the Thermos Japan Water Bottle Vacuum Insulated Mobile Mug 350ML Midnight Black JNR-350M-Bk.