Materials & Care: 

• Stainless Steel 304 - 18/8 Food Grade
• Double Wall Vacuum Insulated
• BPA-Free. Dishwasher Safe.
• Eco-Friendly and Reusable
  
• Tumbler Care - After each use, empty and wash your tumbler with a soft sponge, dish rag, or small brush and mild dish soap. Alternatively, you can soak it in a mixture of equal parts baking soda and warm water for up to an hour. Avoid using bleach or chlorine, as these can damage the sealing parts. Although dishwasher safe, hand washing is recommended to preserve the finish. Ensure all parts are fully dry before reassembling. Do not leave in freezing conditions or hot vehicles for extended periods. For optimal temperature retention, preheat or precool the tumbler by filling it with warm or cold water for five minutes. For customized tumblers, follow specific craft application instructions.