With its sleek design, generous size, and superior temperature control, 40-oz. Black Insulated Tumbler is ideal for on-the-go women, trendsetters, or anyone seeking the ultimate dupe of a famous travel mug. This tumbler keeps your coffee steaming hot for up to 6 hours and your iced tea refreshingly cold for a full 24 hours, making it an essential for busy mornings and long days out.