This tumbler features robust double-wall stainless steel construction with copper insulation, ensuring your beverages remain cold for up to 24 hours and hot for at least 8 hours while preventing external condensation. It boasts a modern, durable powder-coated finish and includes a push-on, spill-resistant lid with a transparent design and silicone closure. The included reusable straw, made from 18/8 food-grade stainless steel, offers a comfortable sipping experience with its silicone tips, making it ideal for cold drinks.