We have it on good authority that these are an exact replica of the actual tumblers used by vikings when they crossed the Delaware in 1492. Leif Erikson, along with his son Leif Garrett and the rest of the clan of Toronto Maple Leifs were known to have carried these into battle when they wanted to keep their cold grog cold and their hot grog hot.
Alright, fine, we can admit that we have no idea why these are called Viking Tumblers, but we do know that they feature double wall insulation, copper lining and a press-in, twist-closure lid with a vacuum seal. They will hold 20oz of your favourite bevvie and look good doing it.
BPA-free and made with 18/8 food grade stainless steel, so no metallic taste.