A Practical DesignMini water bottle top has a loop on it which fits snugly onto a karabiner for attaching to a bag if walking or hiking. A Perfect SizeThe mini flask thermo which fits neatly in the lunch bag. It has never leaked and is a good size for commuting. Vacuum Insulated Little bottle outer treasure double walled vacuum insulated technology ensure your beverage keeping hot and cold for hours,no matter the temperature outside. A Practical Designouter treasure mini water bottle top has a loop on it which fits snugly onto a karabiner for attaching to a bag if walking or hiking. Leak ProofMini water bottles with silicone rubbers ensure no leak even the water bottle is tipped over or shaken. 200ml