The 30 oz Stanley® Stainless Steel Insulated Flip Straw Tumbler is a robust and practical solution for keeping beverages at optimal temperatures. Featuring high-quality stainless steel construction, this tumbler maintains cold or hot drinks for extended periods, ideal for on-the-go hydration. Its flip straw lid offers easy access and spill prevention, while the ergonomic design makes it easy to carry and fits in most cup holders. Perfect for both personal use and promotional branding, it offers excellent customization options.