The insulated coffee mug with lid is made of food-grade rust-proof 304 stainless steel, which doesn't produce harmful chemicals. The lid of insulated mug has a built-in food grade silicone sealing ring, which is sealed and leak-proof. The coffee mug can be easily put into your bag or your vehicle's cup holder, so the insulated coffee tumbler is so convenient to carry to work, exercise and go out. This is not only a travel coffee cup, but also your tea cup, juice cup office and travel mug, meeting your drinking needs anytime, anywhere. The double walled insulation design of coffee cup can keep your drinks hot and cold for several hours, the sweat proof design keeps your fingers dry and not frostbit, so you don't have to worry about annoying drips.
WT0521