The finer details The clever design of this water bottle keeps drinks hot for up to 12 hours, cold for up to 24 hours and remains condensation-free in your bag thanks to the double-walled, vacuum-insulated 18/8 stainless steel with a heat-reflecting copper layer. Lid stores neatly on neck of bottle Easy to carry Double-walled, 18/8 stainless-steel construction with a heat-reflecting copper layer Vacuum insulation keeps drinks hot for up to 12 hours and cold for up to 24 hours Leakproof and won\'t cause condensation in your bag Capacity: 500 ml (17 fl. oz)