Double wall SS vaccum tumbler by double-layer stainless steel, the welding technology of the liner and the shell together with the sandwich liner and shell of vacuum technology in the air to reach out to the vacuum insulation effect.
The length of holding time of double wall SS vaccum tumbler depends on the structure of the tubmbler and the thickness of the tumbler material.
Double wall SS vaccum tumbler has a thermal insulation function. When the weather is hot, we can use vacuum cup to load water or ice, so you can enjoy the cool feeling at any time. When the winter can be put into hot water, let you can always drink warm boiling water.
We can also supply the high quality travel mug, vacuum sports bottle etc. If you need, welcome to contact us.