Vacuum insulated double wall stainless steel  Powder coated finish. Lid features screw on, drink through lid with carrying loop. Keeps liquids warm for up to 12 hours  Keeps liquids cold for up to 16 hours. Gift box included. Top shelf dishwasher safe. 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. Bottle itself is dishwasher safe. The imprint however may be compromised by repetitive dishwasher cleaning.