- Outstanding insulation performance: Adopting advanced vacuum insulation technology, it can maintain the water temperature for a long time. Whether it's hot water or ice water, it can keep the ideal temperature within several hours. - High-quality material: The inner liner is made of food-grade stainless steel, which is safe and non-toxic, not prone to rust, and easy to clean. - Exquisite craftsmanship: The cup body has a simple and smooth design with beautiful lines, exquisite appearance, and meticulous detail handling. - Leak-proof design: The cup cover is tightly sealed and can effectively prevent liquid leakage even when inverted or tilted. - Comfortable hand feel: The surface is specially treated, providing a comfortable grip and not easy to slip. - Moderate capacity: It offers a variety of capacity options to meet your needs in different scenarios, such as daily office work and outdoor sports. - Light and portable: It has a moderate weight, is convenient to carry, and will not add too much burden to you.