ThermoFlask ThermoFlask Set of 2 large-capacity water bottles. Each bottle has a different drinking spout, allowing you to use them according to your needs. These are large-capacity water bottles with excellent heat and cold retention. I am selling them because I no longer have the opportunity to use them. Color: White (heat and cold retention) / Green (cold retention only) Size: Approximately 30cm 1.2 liters Purchased at: Costco Frequency of use: White used a few times, green washed once but unused.