\"The Urban thermo flask keeps water cold when on the go. The double-walled vacuum-insulated sides keep the water cold for a long time, and the flask is easy to use with one hand, with a practical click-open lid which allows you to drink from all sides. The flask is made of robust materials that withstand frequent everyday use, and is 100% watertight, so can easily be popped in a bag.  The flask is also suitable for hot drinks.  Keeps water cold for hours Simple and easy one-hand operation 100% watertight Materials: Stainless steel, Plastic Design by: Tools® Size: Volume: 0.5 L, Height: 21.5 cm, Diameter: 7 cm\"