20oz. Viking stainless steel tumblers are great for keeping your cold beverages icy and your coffee piping hot for hours! They feature double wall insulation, copper lining and a press-in, twist-closure lid with a vacuum seal. Viking tumblers give you high quality, insulated drinkware. Care instructions: Hand wash only. Tumblers that not only hydrate you, but also inspire you to Live An Opulent LifeStyle with every sip.