YETI
YETI Rambler 20oz Tumbler
The YETI Rambler 20 oz Tumbler is a double-wall vacuum-insulated stainless steel tumbler positioned at the premium end of the everyday drinkware market.
### Overview
The YETI Rambler 20 oz Tumbler is a kitchen-grade 18/8 stainless steel, double-wall vacuum insulated everyday carry cup built for serious temperature retention. At 6.875 inches tall with a 3.5-inch mouth width and 2.75-inch base, it weighs 12.7 oz — a compact, cupholder-friendly size that works equally well for morning coffee or afternoon ice water. It comes standard with the magnetic MagSlider™ Lid and is backed by a five-year warranty.
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### Standout Features
- **Double-wall vacuum insulation:** Keeps ice frozen twice as long as a plastic tumbler and works just as well for hot beverages. - **18/8 stainless steel construction:** Kitchen-grade steel makes it puncture- and rust-resistant — and contains no plastic in the body, making it a safe choice for pets and people alike. - **MagSlider™ Lid:** Uses magnets for smooth opening and closing, with a crystal-clear lid so you can always see if you need a top-off; the magnet pops off for easy cleaning. - **No Sweat Design:** Prevents condensation, keeping hands dry and surfaces ring-free. - **DuraCoat® color finish:** DuraCoat Color Technology ensures the finish is built to last without chipping, fading, or cracking. - **Fully dishwasher safe:** Both the tumbler and its MagSlider Lid are dishwasher safe, and the MagSlider magnets pop off for effortless cleaning.
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### Who It's For
This tumbler suits active daily users who want reliable temperature performance without the fuss of hand-washing — commuters, hikers, dog owners, and desk workers alike. It's designed to fit comfortably in standard car, boat, or truck cup holders, making it a natural fit for on-the-go routines. The all-stainless, BPA-free construction also makes it a strong pick for anyone avoiding plastic contact with their beverages, including those sharing drinks with pets.
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### Important Considerations
- **Not truly leakproof:** While splash-resistant with the MagSlider™ Lid, Rambler Tumblers are not 100% leakproof — if jostled in traffic or knocked over, some liquid will spill due to pressure releasing inside. If you need a fully leakproof option for trail use, YETI's Rambler Bottles are the better choice. - **DuraCoat durability concerns:** Some real-world reviewers have reported paint starting to flake off and questioned whether dishwasher use contributes — suggesting hand-washing or opting for the bare stainless finish if longevity of color is a priority. - **Hot drink lid limitation:** Do not use the straw lid (sold separately) with hot drinks. - **Temperature crossover:** Using it for cold drinks immediately after a hot drink may affect its cold-holding ability, and vice versa.
Key features
- Dog-safe stainless
- dishwasher safe
- no plastic
- leakproof for trails
Seen at 5 retailers from $28.00 to $35.00 as of 2026-03-15. Prices change — check the retailer for the current price.
Built to a standard most tumblers only aspire to — the Rambler is the benchmark for a reason.
What stands out
- Double-wall vacuum insulation keeps drinks cold or hot for hours without condensation on the exterior.
- 18/8 stainless steel construction means no plastic contact with your drink and genuine durability.
- Dishwasher-safe finish makes daily cleaning straightforward despite the premium build.
- MagSlider lid (where included) provides a practical leakproof seal suitable for active use.
What to weigh
- Premium pricing sits noticeably above most competing tumblers in the same size class.
- The 20 oz capacity is a middle-ground size — may feel too small for all-day hydration or too large for a quick espresso.
- Lid options vary by retailer; leakproof performance depends on which lid is paired with the tumbler.
Great fit if
- Anyone who wants a durable, no-compromise daily tumbler for hot or cold drinks.
- Outdoor and trail users who need reliable insulation and a leakproof lid.
- Those who prefer stainless-only drinkware with no plastic lining.
Skip it if
- Shoppers looking for budget drinkware — the Rambler commands a significant price premium.
- Those who need a large-capacity vessel for all-day hydration without refilling.
- Anyone who wants a fully sealed, spill-proof lid as standard without purchasing separately.