This 30oz. copper-lined tumbler is a BPA-free, vacuum insulated stainless steel tumbler with double walls. and keeps beverages hot for up to 6 hours and cold for up to 12 hours. The spill-resistant slide closure lid with a rubber gasket. This makes a great employee gift, trade show giveaway, this makes a great advertising piece for colleges, booster clubs, customer thanks, and so much more. Commuters will thanks you for this travel tumbler. The price includes shipping cost.