Featuresr 600ml large capacity designr unique lid design with a fastener very easy to use and convenient to carryr unique polypropylene lid and rim of cup can insulate from the heatr double wall vacuum insulated stainless steel bottle keep beverages hot about 70 for 6 hours 55 for 12 hoursr silicon gasket ring prevents water from running off the bottler suitable for climbing hiking camping picnic and other outdoor activities