Slender outdoor tumbler water bottle

Tumbler has multiple functions and “multiple use in one cup” has become a popular practice in the new vacuum flask. Almost every vacuum flask has its own distinctive features. Some have a double cover design. When driving, just press the small red button in the middle, and the water will automatically flow out without splashing on the car; some are in the car. There is a tea compartment design in the middle of the thermos cup, which can quickly filter tea and tea water, which is very suitable for small white-collar workers in the office; there are also double cups, and the bottom box cover has a hidden compartment for tea, sugar, coffee, etc., and it is made of stainless steel The double-layer vacuum liner can not only hold boiling water, but also ice water, etc. Some cups also have the function of braising. The vacuum flask with the least function also has at least 2 or more functions, and the most functions

Tumbler is simply a cup that can keep heat. It is generally a water container made of ceramic or stainless steel with a vacuum layer. The top is covered and tightly sealed. The vacuum insulation layer can delay the heat dissipation of liquids such as water inside to achieve The purpose of insulation.