This 325ml thermal tumbler is made from durable stainless steel. It has a double wall too, which prevents the buildup of condensation on the exterior. Copper vacuum insulation helps your beverage stay cool or warm for longer. It comes with a clear acrylic push-on lid that makes it suitable for both hot and cold drinks, with a tacticle powder finish. The tumbler is finished with a design created excluisvely by The Hatch, Cisco's internal creative agency.