In terms of material, food-grade silicone is used, which can be safely exposed to all kinds of drinks, even for infants and young children. This kind of silicone is soft and flexible, resistant to kinking, deformation, and cracking. It has a super long service life and can withstand extreme temperature differences from -40℃ to 200℃. Whether it is filled with boiling coffee or iced juice, it can easily cope with it. The design is unique and the hook design is a highlight. It is sturdy and durable. It can be easily hung on backpacks, suitcases, bicycle handlebars, etc., freeing your hands and convenient to carry. It is especially suitable for outdoor activities such as hiking, cycling, and mountaineering. The bottle body can be rolled and folded, and the volume can be greatly reduced when not filled with water. After fixing the folded shape with the attached straps, it can be put into pockets and side pockets of bags, saving a lot of space and making travel more convenient. From a functional point of view, it has excellent sealing performance, with a double-layer cup cover and multi-layer protection design, which fits tightly to the bottle body, effectively isolates the air, and has a first-class leak-proof effect. When placed in a bag or suitcase, there is no need to worry about leaking and wetting other items. In addition, the large-caliber bottle mouth design is convenient for filling liquids and cleaning the bottle body. If it is equipped with a push-button silicone valve, the dosage can be accurately controlled to reduce the risk of contamination. A variety of fashionable colors are available to meet your individual needs and add color to your journey.