Stainless steel. Double wall insulated. Hot or cold. Will come with plastic straw and lid.
You can even add a name!
All tumblers are sublimated. What is sublimation?
A design is printed onto special paper with special dye ink. The inks that are used turn into gas when brought under heat, then combine with the tumbler and permanently print onto the tumbler. The effects are permanent and less prone to fading, as the ink is embedded in the tumbler rather than simply laying on top like a normal print.