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YETI Rambler Tumbler, 20-Oz.

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Since 2006, YETI products have been the go-to essentials for serious outdoor enthusiasts. Famous for coolers that are designed for everything from chasing redfin on the Gold Coast to Alaskan excursions, YETI has branched out to develop the Rambler accessories that further enhance the outdoor lifestyle. This double-walled, vacuum-insulated stainless-steel cup keeps hot drinks hot and cold drinks cold on any adventure. The splash-resistant MagSlider™ lid helps prevent spills when driving on bumpy roads or walking on uneven trails.

  • 20 oz.: 3 1/2" diam., 6 3/4" high.
  • Crafted of durable 18/8 stainless-steel with double-walled vacuum insulation to keep drinks hot or cold until the last sip.
  • NoSweat™ design keeps exterior comfortably and safely dry.
  • Included MagSlider™ lid is splash-resistant.
  • BPA-free.
Dimensions & More Info
  • 20 oz.: 3 1/2" diam., 6 3/4" high; 20-oz. cap.
  • Made in China.
Use & Care


  • Hot drinks will stay hot; please use caution.


  • Top-rack dishwasher safe.

Shipping Information

UPS can deliver most in-stock items within 3–5 business days. UPS is unable to deliver to P.O. boxes.

Shipping Rates

The shipping rate varies depending on your order total and shipping destination. View Shipping Options and Charges.

Next Day Delivery

For an additional charge of $26 per address, we can expedite delivery to most destinations. This service is not available for some oversize items, items shipped directly from the supplier (including perishable and custom-manufactured items), out-of-stock items and items to be shipped outside the contiguous 48 states.

Orders received by 9:00 p.m. ET Monday through Thursday will arrive the next business day; orders placed Friday through Sunday will arrive on the following Tuesday.

Return Policy

At Williams Sonoma, we take great pride in the quality and craftsmanship of our products. Attention to design, materials, safety and construction are our priority. Upon receipt, please inspect your purchase and notify us of any damage; we will arrange for a prompt replacement.

If within 30 days, you are dissatisfied for any reason, you may return your purchase for a refund of the merchandise value. An original receipt or gift receipt is required for all returns and exchanges. Returns with a gift receipt will be refunded in the form of a Merchandise Credit for the amount indicated on the gift receipt. Returns with original receipt will be refunded in the original form of payment, cash and check refunds over $100 will be issued as a company check (may take 14 business days from time of request).

For all cutlery returns (knife sets, single knives, cutting boards, knife sharpeners and knife storage), please contact us at 888.922.4108 to initiate the return.

We cannot accept returns on monogrammed, personalized, special-order items, custom upholstery, food, items shipped direct from the vendor or on items damaged through normal wear and tear. Final sale items ending in .97 or .99 cannot be returned.

Made to Order and Final Sale Furniture items are non-returnable and cannot be cancelled once the order is placed.

For returns of items purchased from your Williams Sonoma Gift Registry, we will gladly provide a refund or exchange for the merchandise within 90 days of your event or within 90 days of purchase, whichever date is later. View Full Returns Policy.

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YETI Rambler Tumbler with Straw, 20-Oz.

YETI Rambler Tumbler with Straw, 20-Oz.

  • Rated 5 out of 5 by from my favorite mug! I love my yeti - I use it everyday! However I learned the hard way these don't float very long - especially when they fly out of the boat while jetting across the lake and turning back to search for it to find it's long gone swimming with the fishes :( time for a new one!
    Date published: 2019-06-14
    Rated 5 out of 5 by from THE holy grail of tumblers THE holy grail of tumblers, as long as you don't need leakproof (which the manufacturer states the magnetic closure isn't)—not that the Hydro Flask and Kleen Kanteen are leakproof, either (but are advertised to be). I own authentic insulateds in all three brands, and Yeti's is all but perfection: – Dishwasher safe. (Hydro Flask and Klean Kanteen aren't; and the Klean Kanteen 2.0 lid is a b-tch to disassemble to clean, and has to be reassembled to just the right amount of tightness for liquid to flow through it.) – Wide enough to fit your hand in, when handwashing. Read: No bottle brush needed. – Easily removable lid. (Take that, Hydro Flask Travel Coffee Mug!) – Quick-flick tab to open/close, and easy to drink from without getting on nose or ruining lipstick. Liquid comes right out (y'hear that, Hydro Flask and Klean Kanteen?). – 20-oz tumbler fits under a Keurig if you remove the drip tray. (16-oz Klean Kanteen doesn't.) – 20-oz fits in a car cup holder. (Neither the 12-oz Hydro Flask or 16-oz Klean Kanteen do.) – Smooth but grippy finish. (Hydro Flask is grippy, too, but it's gritty; Klean Kanteen is too slick and will dent.) – No chipping. (Are you listening, Klean Kanteen, with your Klean Coat?) – Stays hot for hours, just not as long as Klean Kanteen, thus my declaring Yeti all but perfect. (Hydro Flask doesn't stay hot for long, even if you prep it by filling with hot water.) I haven't tried any other brands, and have no desire to because I'm thrilled with Yeti!!
    Date published: 2019-06-14
    Rated 3 out of 5 by from Great cup Only problem I have with this cup is that the air tight seal on the lid does not always work and it leaks water all the time
    Date published: 2019-06-13
    Rated 5 out of 5 by from Professional Mug These are the best on the market. As a professional in the scuba industry I have several of these mugs!!! My primary residents and my boat and at my beach home. My guests love using them keeps drinks hot as well as cold. That magnet style lid is excellent. When you think of coffee in the morning , first thing comes to mind is that yeti Mug. As a yeti pro you want the best of the best. And that is Yeti!!!!!!!
    Date published: 2019-06-12
    Rated 5 out of 5 by from Love, Love, Love It What a great tumbler. Best I have ever had. Keeps hot things hot and cold things cold. Love it.
    Date published: 2019-06-12
    Rated 5 out of 5 by from Stays hot or cold ALL DAY! I've had it for a month. Living in Florida, with the hot summers I really needed it! I fill it with ice, and continue adding my water. The ice stays in my Yeti for 10 hours, Outside! My coffee stays hot all morning. I only wish I would have bought the 30 ounce tumbler! Unbelievably great product!!
    Date published: 2019-06-12
    Rated 5 out of 5 by from So good my roomate stole it! I bought myself this mug on a road trip to Maine. It was my favorite coffee cup to use because it kept my drinks hot and it was easy to carry and reuse wherever I went. Unfortunate I made the mistake of putting it in my kitchen cabinet with my stuff one day and one of my four roommates took it out for a test drink without asking and now I no longer have it. Time for a new one I guess
    Date published: 2019-06-11
    Rated 5 out of 5 by from Love my Tumblr! I think the name YETI speaks for itself. All the products are amazing and I am beyond happy with my most recent purchase !
    Date published: 2019-06-10
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