This insulated 20oz coffee mug is made of premium food grade 18/8 stainless steel, fully resistant to oxidation and rust. The finish is treated with durable slip-free powder coating, so it won't be scratched and not easy to peel off or fade. The double-layered and evacuated wall can keep your drinks cold for more than 9 hours and hot for more than 3 hours. The most special design of coffee mug is that the height of the handle raises, which makes the mug perfectly fits with the automobile cup holder. Also, the sliding lid and the silicon O-ring ensure the leak-proof function. The mug won't leak when lying down or even upside down. So you don't have to worry about leakage.
