20 oz Rambler Stainless Steel Tumbler with MagSlider Lid - Durable
20 oz Rambler Stainless Steel Tumbler with MagSlider Lid - Durable
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In this review the YETI Rambler 20 oz stainless steel tumbler is judged for everyday commuters, outdoor enthusiasts, and anyone who needs a dependable cup to keep drinks at serving temperature. The single biggest reason to buy is its double-wall vacuum insulation combined with a magnetic MagSlider lid that provides an extra barrier against heat and cold loss. The reviewer found the build quality reassuringly solid and appreciated that the tumbler fits standard cup holders while staying free of condensation thanks to the No Sweat Design.
Key Features
- Double-wall vacuum insulation: Keeps hot drinks hot and cold drinks cold for extended periods so beverages stay at a usable temperature through long days.
- MagSlider lid: Uses a magnet to help keep the drinking opening closed when not in use, adding a simple protective barrier without creating a false sense of leakproof security.
- Stainless steel construction: Durable material resists dents and holds up to daily use for a long service life.
- No Sweat Design: Exterior stays dry during hot or cold use which prevents rings on furniture and makes it comfortable to hold.
- Dishwasher safe and BPA-free: Easy cleanup in the dishwasher and safe interior materials for regular use.
- Duracoat finish on colored models: Coating resists cracking, peeling, and fading to maintain appearance over time.
Who It's For
The Rambler 20 oz is ideal for commuters, office workers, and outdoor users who want a sturdy cup that holds temperature and fits most cup holders. Its height of 6 7/8 in and lip diameter of 3 1/2 in make it a practical choice for travel mugs and car use.
Those who need a fully leakproof bottle for backpacks or true spill protection should look elsewhere, since the MagSlider lid provides a protective barrier but is not leakproof. Buyers prioritizing an ultra-lightweight single-use option may also prefer a different product.
Pros & Cons
Pros
- Excellent temperature retention for both hot and cold drinks based on the double-wall vacuum design.
- MagSlider lid adds convenience and keeps the opening covered using magnets.
- No Sweat Design keeps hands and surfaces dry during use.
- Durable stainless steel and dishwasher-safe construction make it low maintenance.
Cons
- MagSlider lid is not leakproof and will not prevent spills if tipped over.
- Some buyers may find the price higher than basic tumblers, though build quality supports the cost.
Specifications
| Brand | YETI |
| Capacity | 20 oz |
| Height | 6 7/8 in |
| Lip diameter | 3 1/2 in |
| Material | Stainless steel with Duracoat on colored models |
| Insulation | Double-wall vacuum |
| Lid type | MagSlider magnetic lid (not leakproof) |
Our Verdict
The YETI Rambler 20 oz tumbler is a practical, well-made choice for anyone who values temperature retention, durability, and a dry exterior. It is worth the investment for daily use and outdoor activities if you accept the MagSlider for convenience rather than full spill protection. For those needs it represents good value thanks to lasting materials and consistent performance.
Frequently Asked Questions
Is the MagSlider lid leakproof?
The MagSlider lid provides a magnetic barrier but is not leakproof and will not prevent spills if the tumbler is tipped.
Can the tumbler go in the dishwasher?
Yes, the Rambler 20 oz is dishwasher safe which makes cleaning straightforward.
Will it fit in standard cup holders?
Yes, the 20 oz Rambler is sized to fit standard cup holders with a height of 6 7/8 in and a 3 1/2 in lip diameter.
Editor's Take
The YETI Rambler 20 oz tumbler offers durable stainless steel construction, reliable double-wall vacuum insulation, and a magnetic MagSlider lid for convenience; it is ideal for daily use though the lid is not leakproof.

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