I carried mineral water in it twice. I didn't have to worry about it opening on its own, even in a roughly handled bag, which was reassuring. It's very light and convenient for carrying a large capacity. There are some scuffs on the bottom, but overall it's clean. [Overall Length] The overall length is about 27 cm, making it a convenient size to carry. [Functionality] It uses a lock-type cap, which is excellent for preventing leaks. Also, the double-wall construction allows it to maintain temperature for a long time. (Approx.) (cm) Diameter 7.4 x Height 26.7 Manufacturer: Konan Original Capacity: 0.75 L Weight: 295g - Color: Light Blue - Cap Type: Lock-type - Internal Structure: Double-wall 750ml