The 24 oz. Varedo DuoFlow Vacuum Insulated Stainless Steel Tumbler is designed for versatility and temperature control, keeping drinks hot for up to 8 hours and cold for up to 12. Featuring double-wall, lead-free vacuum insulation with copper lining, it's built for lasting performance. The dual-use lid offers both a straw and drink hole, making it ideal for both hot and cold beverages. With a durable powder-coated finish, large imprint area, and a design that fits most car cup holders, it's perfect for on-the-go use. Item should not be put in the microwave or freezer.