30 oz. Vacuum insulated double wall tumbler with clear AS pressure lid. 18/8 powder coated stainless steel with copper lining; fits in standard cup holders. Not microwave safe; hand wash only. Packaged in retail box. Keeps drinks hot for 6 hours or cold for 12 hours! YOUR PURCHASE MAKES A DIFFERENCE! Basecamp® will donate $100,000 in 2020 to support Wounded Warrior Project’s mission to honor and empower wounded warriors. To learn more, visit www.woundedwarriorproject.org.