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Rambler Magslider Tumbler- 20oz

4.628801515869256 out of 5 stars
10555 Reviews



When you're hot, you're hot.

Keep your cold ones cold and your hot ones steamy in the rugged Rambler 20oz Magslider Mug from Yeti. The stainless steel construction can take a beating, and the double-wall vacuum insulation keeps your drink just the way you want it.


  • Double-walled, stainless steel mug
  • Made with 18/8 steel to avoid condensation accumulation
  • Magnetic lid closure for keeping liquids secure
  • Dishwasher safe for easy care
  • Item #YET001O
Magslider lid
Recommended Use
casual, weekend camping, winter camping
Manufacturer Warranty
5 years

Overall Rating

4.5 based on 10556 ratings

Review Summary

1 Stars - 350 reviews
2 Stars - 280 reviews
3 Stars - 465 reviews
4 Stars - 748 reviews
5 Stars - 8713 reviews

Fits True To Size

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

What do you think about this product?


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5 out of 5 stars

July 4, 2024

Good product

I got 2 of these for driving, so far they are good. I like the lock on the top. It's not completely leak proof but it is enough. I had a hot drink it in for about 6 hours and it was still warm.

Leelye B

Originally reviewed on

5 out of 5 stars

July 2, 2024

Hot drink

Kept my coffee hot for hours. I won’t use anything else when traveling.


Originally reviewed on

5 out of 5 stars

July 1, 2024

Love it

Great tumbler, I use it every day. Love that it fits in the car cupholder.

Andrew Joseph

Originally reviewed on

5 out of 5 stars

June 23, 2024


Just what I wanted, I bought 2 and have one cold and one hot drink and hit the road.


Originally reviewed on

3 out of 5 stars

June 20, 2024

Great for keeping hot/cold but…

Love the way the tumbler keeps things hot for long periods but the top leaks at the opener when tipped over.

Bob from Syracuse

Originally reviewed on

5 out of 5 stars

June 17, 2024

“Go To” water glass

As the days got warmer we noticed the water glasses leaving puddles of condensation on the table. No longer a problem. This is my husband’s every day water tumbler. Rinse, repeat. I prefer the wine tumblers for my hydration needs! 🤣

Mary Mahoney

Originally reviewed on

5 out of 5 stars

June 16, 2024

Iced coffee

Perfect size for ice coffee from keurig coffee maker or keurig ice coffee maker


Originally reviewed on

3 out of 5 stars

June 11, 2024

Tops leak

Loved the cup and it really keeps things hot for hours. The thing I don’t like about it is the top. You tip it over and it leaks and I thought it might be this particular one, but having bought two at the time, the other one leaks also, so really don’t care for the sealing of the top.

Bob from Syracuse

Originally reviewed on

5 out of 5 stars

June 9, 2024

Yeti always

Great product always from yeti but need a better cap

Ed e

Originally reviewed on

5 out of 5 stars

May 28, 2024

20oz Tumbler

I surprised my husband with a set of the 20oz tumblers. He loved the fact that they are dishwasher safe and loves how the closure tab is magnetic so can be removed for thorough cleaning. Very impressed.


Originally reviewed on