This stainless steel tumbler is perfect for keeping your favorite beverage hot or cold for up to 3 hours or 6 hours, respectively. Its sleek black design and durable materials make it easy to take on the go in your tote bag or knapsack. Don't forget to add a free monogram on the rear of the tumbler for a personalized touch - simply indicate the name in the notes to the seller at checkout. And remember, this tumbler must be hand washed and should not be microwaved. Cheers to enjoying your drinks on the move!