Vacuum insulated double wall stainless steel tumbler . Powder coated finish. Stainless steel rim accent. Keeps liquids warm for up to 12 hours . Keeps liquids cold for up to 24 hours. Clear acrylic slide closure lid . Please note: The imprint will take on the texture of the powder coated finish. As a result, some fine lines and edges may not appear as crisp. Top shelf dishwasher safe. The imprint however may be compromised by repetitive dishwasher cleaning.