The 20 oz Ceramic Lined Travel Tumbler with Straw features a ceramic-lined interior that helps preserve the taste of your beverage without a metallic aftertaste. Double-wall copper vacuum insulation helps keep beverages cold for hours, while the reusable straw provides a convenient sipping option. A leak-proof lid helps reduce spills, and the streamlined profile fits comfortably in most cup holders and bags for easy transport. Hand wash is recommended to preserve the decoration.