Hot Sale Double Wall Stainless Steel Coffee Thermos Cups Mugs Thermal Bottle 500 ml Thermocup Fashion Tumbler Vacuum Flask.Vacuum insulation technology locks in temperature to preserve flavor and freshness to keep hot for more than 5 hours ( more than 72 degree celsius ), and cold for more than 6 hours. Durable stainless steel interior and exterior withstand the demands of everyday use. Drink lid opens with push button ease and locks closed for carefree travel. Bottle stays cool to the touch with hot liquids and is condensation-free with cold. Light and compact design for effortless transport and storage and fits most automobile drink holders.