Our 40oz tumbler is a large, insulated drinking container designed to hold a generous amount of liquid (approximately 1.2 liters) of your favourite beverage. These tumblers are popular for their ability to keep drinks either hot or cold for an extended period, making them versatile for a variety of situations such as camping trips, long commutes, picnics, or simply enjoying a drink at home. The double-wall vacuum insulation technology creates an airless space between the inner and outer walls of the tumbler, minimizing heat transfer and maintaining the desired temperature of the liquid inside. Available in 8 colours