CUNGOO DRINKWARE:
A Leading Manufacturer in Stainless Steel Drinkware Solutions

CUNGOO DRINKWARE stands as a distinguished and professional manufacturer specializing in high-quality stainless steel drinkware. With a robust focus on innovation and functionality, the company has established itself as a trusted name in the production of vacuum flasks, insulated tumblers, and travel water bottles.
Renowned for its commitment to excellence, CUNGOO DRINKWARE leverages cutting-edge technology and superior craftsmanship to deliver products that meet the demands of modern consumers. Each item is meticulously designed to provide optimal insulation, ensuring beverages remain at their desired temperature for extended periods. Whether it’s a piping hot coffee on a chilly morning or an ice-cold beverage on a scorching afternoon, CUNGOO’s products are tailored to enhance the user experience.
As a large-scale manufacturer, CUNGOO DRINKWARE prioritizes quality, durability, and sustainability. By utilizing premium-grade stainless steel materials, the company not only ensures the longevity of its products but also contributes to reducing single-use plastic waste—an essential step toward environmental preservation.
CUNGOO DRINKWARE’s dedication to innovation, coupled with its focus on customer satisfaction, positions it as a leader in the drinkware industry. Whether for personal use, outdoor adventures, or professional settings, CUNGOO’s range of stainless steel vacuum flasks, insulated tumblers, and travel water bottles continues to set benchmarks in performance and design.
Our products includes: vacuum flask,coffee mug,tunbler,kettle,teapot,travel thermos water bottle,plastics drinkware etc.
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Our picks include the all-around best-in-class Yeti Rambler 10 oz Wine Tumbler, the easy-to-hold Corkcicle Classic Stemless, which comes in over 50 colors and patterns, and the budget-friendly Ello Clink 12oz Stainless Wine Glass with a built-in coaster.
The research
Our pick: Yeti Rambler 10 oz Wine Tumbler

Top pick

With a sloped lip for easy sipping, and a smooth lid-locking mechanism, this tumbler is the most enjoyable to use, and it excels at keeping liquids the right temperature for drinking hours after they are poured. It also didn’t leak during our tests.
Why it’s great
The Yeti Rambler 10 oz Wine Tumbler is an all-around excellent insulated wine tumbler, but what really sets it apart is its thoughtfully designed lid; it was the easiest to drink from and was one of the few tumblers we tested that was also leakproof.
The mouthpiece is gently sloped to eliminate splash back. This Yeti wine tumbler has the only lid we tested that has this small but great feature. Also unique to it is what Yeti calls the Magslider lid: a sliding magnet that glides open and closed effortlessly, which not only feels nice to use, but creates a seal when closed that didn’t leak during our tests. This, paired with the it’s superior ability to keep beverages cold (or hot) for hours, makes it the standout star of tumbler testing.
It excels at temperature retention. We found that the Yeti wine tumbler—made of durable stainless steel with double-walled vacuum insulation—was capable of keeping cold water chilled for six hours during our temperature tests. It performed just as well during real-life testing: My fiancé sipped on a whiskey cocktail with ice throughout the evening, then left the ice-filled tumbler by the sink overnight. The ice was still rattling around in it the next morning. At a summer barbecue, another staff member found that the Yeti kept her and her guests’ drinks cold for the entire evening. This tumbler can also keep a warm beverage steaming hot for several hours after its poured, making it a good option for slow-sipping coffee and tea drinkers, too.
It fits nicely in small and large hands. Its matte powder coat is smooth to the touch, and the insulated tumbler is comfortable to hold whether it’s filled with slushy frosé or a steaming hot toddy.
The tumbler and the lid are dishwasher safe for easy cleanup. The lid’s Magslider and gaskets can be removed to clean any gunky buildup within the nooks and crannies. One tester found the slider lid durable enough to withstand a years’ worth of fidgeting and accidental dismantling.
It comes in eight simple colors, and you can customize it with a logo, text, or a monogram starting at about $6. The colors of the tumblers might be relatively basic (they have mainstays like navy, black, and white and a few snazzy seasonal colors like yellow and green). But the customization makes these great gift options for anyone; they’d be perfect for grads, bridesmaids, or groomsmen specifically. Customization is only available for tumblers you buy directly on Yeti’s site, though.
Flaws but not dealbreakers
The Yeti wine tumbler lacks a nonslip rubber bottom, so it might slide on smooth or wet surfaces. This makes it easier to knock over, but it isn’t a huge concern since we found that its lid stops spills, and its insulation prevents any condensation from forming and pooling under the tumbler.
Runner-up: Corkcicle Classic Stemless

Runner-up

It has sleek flat sides, an anti-slip bottom, and comes in a great variety of colors—but its lid isn’t leakproof and doesn’t glide as smoothly as our top pick.
Why it’s great
The Corkcicle Classic Stemless comes in some 50 colors and patterns—the most of all the wine tumblers we tested. It also holds 12 ounces compared with the Yeti wine tumbler’s 10 ounces, but it really doesn’t feel any bigger, and thanks to its subtly flat side panels, some might find the Corkcicle Classic Stemless even easier to hold. These features make up for the fact that the lid leaks a bit.
It’s designed to be easy to hold—and not topple over. This tumbler is almost completely rounded, aside from two small, flat panels for your fingers to nestle around, which makes it feel even more secure in your hand. It also has a small silicone bottom that keeps the cup firmly in place on smooth or slippery surfaces.
It keeps cold drinks cold and hot drinks warm just as well as our top-pick Yeti wine tumbler. The triple-insulated, stainless steel Corkcicle Classic Stemless can keep cold liquids reliably chill for six hours and boiled water hot enough to burn your tongue even three hours in. While preparing Sunday dinner, I sipped a gin cocktail with ice from the Corkcicle Classic Stemless before forgetting it on the countertop in the general mayhem of hosting. When I reached for it hours after our meal, the ice cubes hadn’t melted and the drink was still pleasantly cold.
The massive selection of hues and patterns includes neon, chrome, glittery florals, and even Disney- and Marvel-themed wraps. You’re bound to find something you like—or want to give as a gift. Personalization is also available on select tumblers starting at about $8.
Flaws but not dealbreakers
- The lid is not entirely leakproof. The lid’s slider covers the sipping port, which prevents leaks from some angles, but the gaskets around the lid don’t create a tight-enough seal to keep liquid from seeping out when the cup is tipped fully to the side.
- The lid slider doesn’t glide as smoothly and feels flimsy. While inspecting the lid to see if it came apart for easy cleaning, I accidentally broke the slider, snapping the small plastic attachments that keep it in place. When I reached out to customer service, they let me know that the lid is indeed designed to be removed for thorough cleaning (information we couldn’t find easily on the site) and provided suggestions about how to twist and pop the lid back on; they also offered to help if that method didn’t work. I was still surprised at how easily the brittle plastic snapped under light pressure. Given that this tumbler is among the pricier options available on the market, it’s disappointing that its lid isn’t as durable as the tumbler itself. But we tested two other Corkcicle wine tumblers after the original unit broke and haven’t had any issues with the lids.
- Not all Corkcicle tumblers are dishwasher safe. Keep in mind that the care instructions might change based on which style you choose—some, like this floral pattern, can survive a top-rack spin through the dishwasher, while others, such as the metallic dragonfly pattern, require hand-washing. Make sure to check the care instructions of your specific tumbler before washing.
Budget pick: Ello Clink 12oz Stainless Wine Glass with Silicone Protection

Budget pick

This inexpensive tumbler insulates just as well as its pricier counterparts and has a nifty built-in coaster to keep it from spilling. But it isn’t dishwasher safe and the lid doesn’t close completely.
Why it’s great
The Ello Clink 12oz Stainless Wine Glass with Silicone Protection is the best tumbler we found for less than $20. It costs $10 to $15 less than the Yeti Rambler 10 oz Wine Tumbler and the Corkcicle Classic Stemless, but it insulates even better. Unlike our pricier picks, though, its lid isn’t leakproof. That flaw is offset by its textured silicone bottom that is designed to help prevent spills (and is easily removable for washing). It’s a unique feature that also looks and feels pretty cool, especially in contrast to the tumbler’s sleek metallic body.
When we tested for temperature retention, it performed even better than pricier picks. After five hours, the ice water in the Ello tumbler went up in temperature only 9 degrees (the Yeti tumbler went up 10 degrees, and the Corkcicle tumbler went up 12 degrees).
But it lacks a sliding lid that seals the sipping port, so it’s not leakproof. Still, thanks to its small sipping port that prevents splashback, we found it much easier to drink from than other open-mouthed lids.
It felt better in hand than other similarly priced options and has a built-in coaster. The removable silicone koozie keeps the cup in place and provides more grip for easy holding. Though the lid will leak if the tumbler is knocked over, this grippy silicone base prevents frequent spills.
It comes in four colors. You can choose from metallic teal, metallic millennial pink, metallic mint, and matte black.
Flaws but not dealbreakers
The stainless steel tumbler and rubber coaster aren’t dishwasher safe, but the plastic lid is. We also appreciate that the lid’s gaskets and the built-in coaster can be removed for deep cleaning.

The competition

We have colleagues who have owned and liked the Brümate Uncork’d XL, but we found it heavy and difficult to use. Though it is leakproof, the screw-top lid and sealing mechanism felt like overkill: The lid was difficult to unscrew, and the flip-top required too much effort to open and close. The Uncork’d XL comes in more than 40 colors, but not all the colors are dishwasher safe. The grippy rubber bottom on our tumbler peeled off after hand-washing it only once.
At $30, the Hydro Flask 10 oz Ceramic Wine Tumbler was one of the more expensive tumblers we tested, but it wasn’t worth the investment. Though leakproof when sealed, the lid’s sliding mechanism was difficult to push open and closed, and the one-piece lid couldn’t be disassembled for deep cleaning. The tumbler also felt small in our hands, even though it holds the same amount of liquid as our top pick from Yeti.
Stanley’s Go Everyday Wine Tumbler lid can’t be sealed completely and has a wide mouth that splashes in your face while you sip. It performs a bit better than our budget pick from Ello in terms of temperature retention, but it doesn’t feel as nice in hand and costs nearly $10 more.
The Yukon Outfitters Freedom 10 oz Wine Tumbler looks exactly like the Yeti Rambler 10 oz Wine Tumbler and feels similar in hand—and costs under $10. But its lid isn’t leakproof, the sipping port slider feels flimsy, and it can only be washed by hand.
The Contigo River North Stainless Steel Wine Tumbler was disqualified by its sliding lid cover, which wiggled when we moved it, causing it to get stuck along the way.
How we picked and tested

We evaluated nearly 35 wine tumblers from popular and lesser-known brands and narrowed our list down to eight based on the criteria below.
- Good temperature retention: A good tumbler should be able to keep a frosty drink cold and crisp for hours after its been poured and should stop a hot beverage from getting lukewarm too quickly. Double-walled, vacuum-insulated tumblers made of stainless steel provide the best temperature retention, so we only tested tumblers that fit this criteria.
- Leakproof lid and spill-proof rubber bottom: Tumblers shouldn’t leak or tip over easily. For this reason, we only considered lidded tumblers; we preferred lids with sealing mechanisms that cover the sipping port and rubber gaskets that keep the lid in place and can’t be jostled open easily. We also prioritized tumblers with grippy rubber bottoms that prevent them from sliding around, though we didn’t disqualify any contenders without this feature.
- Easy to hold and drink from: A quality insulated tumbler doesn’t feel too cold or too hot to the touch or collect beaded drops of condensation. It should be pleasant to sip from, easy to grip, and fit in your hand comfortably.
- Easy to clean: You’re more likely to reach for a tumbler that you can stick in the dishwasher at the end of the night than one you have to hand-wash. We also preferred lids with removable sliders and rubber gaskets, which allow for easy deep cleaning.
- Aesthetically pleasing: We preferred wine tumblers available in a variety of colors and patterns that have a greater chance of appealing to a wide range of people.
We tested the tumblers’ ability to keep beverages cold over time by filling each with refrigerated water and ice and taking the temperature with an instant-read thermometer every hour for six hours. We did the same test the next day with boiling water, measuring the temperature in hour intervals over three hours.
To assess lid quality, we filled each tumbler with water and used the built-in mechanisms to seal the sipping port. Then we knocked them over to see how much, if any, liquid seeped out. We also took apart the lids to see how easy they were to clean, then ran the dishwasher-safe tumblers through a wash cycle.
We used the tumblers with a group of friends during a dinner party, which started early in the afternoon and stretched out into the evening. Some sipped cocktails in their cups, some drank wine, and others stuck to bubbly seltzer. We considered how the tumblers felt to sip from, how they felt to hold, and how long they kept nursed beverages at ideal temperatures.
After narrowing down the eight contenders to three finalists, my coworkers and I continued to use those tumblers regularly, drinking our morning coffees and afternoon seltzers from them. We plan to keep using our picks throughout the next few months and will update this piece in the future with how they’ve held up.
This article was edited by Alexander Aciman and Catherine Kast.