The outer body is made of high-quality materials, which ensures the durability and longevity of the product. High-quality inner glass, helps to maintain the temperature of drinks for a long time. It has the ability to retain heat for up to 12 hours, making it ideal for daily use or when traveling. It can keep cool for up to 24 hours, which makes it suitable for cold drinks on hot days. It has a manual pressure to control the opening and closing of the thermos, facilitates the use process and reduces fluid leakage. ** A feature that helps maintain the aesthetic appearance of the thermos : It is advisable not to wash the thermos from the outside, it is enough to wipe it with a clean cloth.