Product overview
For a confident ride on the bumpiest roads.
Give leaks a run for their money with the Rambler® Stronghold™ Lid. Designed for our 20oz. Travel Mug, the lid twists on securely and uses dual-slider magnet technology to help keep leaks and splashes contained. To sip, simply push the magnet down and slide. When you're done, slide it forward. And when it's time for a cleaning, just pull the magnets apart and let the dishwasher do the work. Do not use the Rambler® Stronghold™ Lid with carbonated beverages or for storage of food or perishables. Learn more about product use and safety on our FAQ page. For detailed cleaning instructions, learn more here on our Rambler® Cleaning instructions page.

Stronghold Lid size compatibility
This replacement Stronghold Lid is sized for the 20 oz Travel Mug. YETI identifies separate 20 oz and 30 oz Stronghold Lid sizes; choose the size that matches your mug.
Source: YETI Travel Mug FAQ. This note cites the source’s size guidance. Shared product photos across regional stores do not establish that the two sizes are interchangeable.
Product FAQ
Which mug takes this lid?
This size fits the 20 oz Rambler Travel Mug that takes a Stronghold Lid.
How should I carry the mug?
The closed lid helps reduce leaks. Keep the mug upright during transport.
How does this differ from a MagSlider Lid?
The Stronghold Lid screws into the mug and uses a dual-magnet slider. The standard MagSlider Lid presses into place.
U.S. retailer price references
- Hartville Hardware — U.S. list price observed 2026-11-09, USD 13.00 for Redesigned 20 oz Stronghold replacement lid.
These figures reflect the named retailers and dates. See the price above for the current YetiBuy offer.
20 oz Stronghold Lid compatibility and recall
YETI confirms that the redesigned 20 oz Stronghold replacement lid fits the original Rambler 20 oz Travel Mug body.
Recall 21-020. If the date code on the bottom of your 20 oz Travel Mug is 34204010, stop using the mug with its original lid immediately. Follow the CPSC and YETI instructions to return the recalled lid for a refund. YETI says you may keep the mug body.
U.S. model and fit
Manufacturer SKU 21070060056 · UPC 888830046982. Brinkmann’s lists the matching SKU and UPC at US$13.00 per lid.
This clear replacement lid fits the Rambler 20 oz Travel Mug with the threaded StrongHold connection. The dual-magnet slider helps contain splashes. The lid is dishwasher safe. Avoid carbonated drinks and storing food or perishables.