myCOOLMAN 2 x Thermal 887ml Stainless Steel Tumbler Pack, 1 Year Warranty The myCOOLMAN Thermal HP 887ml (30 oz) Stainless Steel Tumbler is the perfect companion for weekends at the beach or sitting around the campfire The tumblers triple-layer interior construction consists of a copper-plated interior layer, 18/8 stainless steel and high pressure, vacuum-sealed insulation that provides hours of hot or cold enjoyment The condensation-free tumbler has a pressure fit lid with a silicone gasket and feels good to hold Fits in most car cup holders BPA free Features: BPA free Copper plated interior layer 18/8 Stainless steel High-pressure vacuum sealed insulation Pressure fit lid with silicone gasket Keeps liquids cold or hot for hours Splash protecting lid