Featuresr 500ml large capacity designr sahoo vacuum insulation technology to keep beverages hot about 55 for 6 hours 46 for 8 hours keep beverages cold about 10 for 6 hoursr drink lid opened with push button and leakproof lock for carefree travelr adopts durable stainless steel and food grade pp safe and healthfulr light and compact design for effortless transport and storage