Haers S/S Vacuum Insulated Water Bottle 320ml is an insulated stainless steel water bottle that keeps liquid hot or cold for hours. Comes with wide mouth for easy filling and detachable inner lid ensures thorough cleaning. Tight-fitted lid with gasket seals lid to minimize leaks and maximize heat retention heat insulation (6 hours): 40C & above.- Capacity: 320ml- Double wall vacuum insulation for best temperature retention, hot and cold - Food grade unbreakable 18/8 stainless steel outer and inner shell- Cool to the touch with hot liquids