Product Overview
The YETI Rambler 20 oz Tumbler is a durable, vacuum-insulated drinkware designed to keep your beverages hot or cold for extended periods. It features an 18/8 stainless steel body and a convenient MagSlider Lid, ensuring your drinks maintain their temperature and preventing spills.
Initial Setup
Before using your YETI Rambler 20 oz Tumbler for the first time, please follow these steps:
- Remove the MagSlider Lid from the tumbler.
- Disassemble the MagSlider Lid by sliding off the magnetic slider for thorough cleaning.
- Wash the tumbler body, lid, and magnetic slider with warm, soapy water or place them in the dishwasher.
- Ensure all components are completely dry before reassembling and using.

YETI Rambler 20 oz Tumbler in Navy with MagSlider Lid. This image shows the tumbler with its lid, ready for initial setup.
Usage Instructions
The YETI Rambler Tumbler is engineered for optimal temperature retention. Follow these guidelines for best performance:
- For Hot Beverages: Fill the tumbler with your desired hot drink. Secure the MagSlider Lid firmly. The double-wall vacuum insulation will maintain the temperature for hours.
- For Cold Beverages: Fill the tumbler with your cold drink and ice. Secure the MagSlider Lid. The insulation will keep your drink cold and prevent condensation on the exterior.
- MagSlider Lid Operation: To drink, simply slide the magnetic closure open. To minimize spills and maintain temperature, slide it closed when not drinking.
Demonstration of the YETI Rambler's ability to retain ice for extended periods, highlighting its insulation performance.
Detailed review of the YETI 20oz Rambler, showcasing its features including the MagSlider lid and durability.
Care and Cleaning
Proper care ensures the longevity and performance of your YETI Rambler Tumbler:
- Dishwasher Safe: All YETI Rambler products, including the tumbler body and MagSlider Lid, are dishwasher safe. Place them on the top rack for best results.
- Hand Washing: For hand washing, use warm, soapy water and a non-abrasive sponge or brush.
- Lid Cleaning: The MagSlider component can be easily removed from the lid for thorough cleaning of all parts. Simply slide it off, wash, and reattach.
- Drying: Ensure all parts are completely dry before storage to prevent odors or mildew.

Close-up view of the YETI MagSlider Lid, showing the magnetic slider mechanism for easy cleaning.

The YETI Rambler Tumbler is dishwasher safe and BPA-free for convenient and safe use.
Troubleshooting
If you encounter any issues with your YETI Rambler Tumbler, please refer to the following common solutions:
- Lid Leaking: Ensure the MagSlider Lid is properly seated on the tumbler and the magnetic slider is fully closed. While the MagSlider Lid is designed to reduce spills, it is not leakproof when inverted.
- Temperature Retention Issues: Verify that the lid is securely attached. Extreme external temperatures can affect performance, but the double-wall vacuum insulation should maintain temperature for several hours.
- Cleaning Stains: For stubborn stains or odors, a mixture of baking soda and water can be used. Let it sit for a few hours before scrubbing and rinsing thoroughly.
Product Specifications
| Feature | Detail |
|---|---|
| Brand | YETI |
| Model Name | YETI Rambler 20 oz Stainless Steel Vacuum Insulated Tumbler w/MagSlider Lid |
| Model Number | 21070060029 |
| Capacity | 20 Ounces |
| Material | 18/8 Stainless Steel |
| Color | Navy |
| Dimensions (W x H) | 3.5" x 7" |
| Item Weight | 360 Grams |
| Special Features | Magnetic, Dishwasher Safe, Vacuum Insulated, No Sweat Design, BPA-Free |
| Included Components | Tumbler, MagSlider Lid |

Diagram showing the dimensions of the YETI Rambler 20 oz Tumbler: 3 1/2 inches lip diameter, 6 7/8 inches height, 2 3/4 inches base diameter, made of 18/8 stainless steel.
Warranty and Support
For detailed warranty information or product support, please visit the official YETI website at www.yeti.com or contact their customer service directly. Please retain your purchase receipt for any warranty claims.





