Large Capacity: With a 30oz capacity, this tumbler holds more of your favorite beverages, perfect for staying hydrated on the go. Vacuum Insulation: Double-wall vacuum insulation keeps your drinks hot or cold for hours, ensuring optimal temperature retention. Durable Stainless Steel: Made from high-quality stainless steel, this tumbler is built to withstand daily use and resist rust and corrosion. Convenient Straw: Comes with a reusable straw for easy sipping, and a spill-proof lid to prevent leaks and messes. Portable Design: Designed for convenience, it fits most cup holders and includes a non-slip base to prevent tipping.