Coldest 20 oz Tumbler v2 WinterGlass Luna
Up to 36+ Hours Cold* · Lid designed to seal tight · Cupholder Friendly
Description
Meet the COLDEST 20oz Tumbler — the everyday coffee tumbler from COLDEST. Vacuum-insulated stainless steel keeps coffee and tea hot for up to 13+ hours and iced drinks cold for up to 20+ hours*, with no sweating and no metallic taste.
A clear splash-resistant slide lid for sipping upright, a non-slip rubber bottom, and a size that fits standard car, gym and stroller cupholders. Built for quick, on-the-go coffee, tea and powder mixes.
Make it yours with Personalize.
Details
Key Features
- Up to 13+ hours hot, up to 20+ hours* cold — vacuum-insulated stainless steel.
- Splash-resistant slide lid — sip upright, no straw needed (not for tossing in a bag).
- Fits standard cupholders with a non-slip rubber bottom.
- No sweat — no ring on your desk, no puddle in your cupholder.
- Pro-grade 18/8 stainless steel — no metallic taste.
Size & Fit
- Capacity: 20 oz
- Best for: quick, on-the-go coffee, tea, and powder mixes
- Fit: fits cupholders
Specs & Dimensions
- Capacity: 20 oz
- Size: 7in tall, 3.43in wide
- Material: 18/8 pro-grade stainless steel
- Insulation: Vacuum — up to 13+ hrs hot / 20+ hrs* cold
- Lid: a clear sliding lid (splash-resistant)
- Fits cupholder: Yes, standard car, gym and stroller cupholders
Care & Warnings
- Hand wash only to protect the finish.
- Do not freeze or microwave.
Small parts — choking hazard; not for children under 8 without adult supervision. Use extreme caution with hot liquids; pressure can build with altitude changes.
Shipping & Returns
- Free 1–5 day US shipping on orders over $125.
- Ships in 1–2 business days.
- Risk-free returns — try it and see.
Customer Q&A
See all 28 questionsFrequently added
Customers often grab these with their 20oz Tumbler.
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Customers say
Customers say they love the designs, how cold it keeps drinks and the size.
Based on the text of 1401 customer reviews (4.8 out of 5). Select a topic to see what they say.
499 reviews mention design. 96% of them gave 4 or 5 stars.
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“Love the design and how cold it keeps my drinks!”
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“I love the bottle and the design.”
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“Graphics are outstanding, colors are bold, and the dogs are as cute as they can be.”
453 reviews mention cold retention. 93% of them gave 4 or 5 stars.
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“The 20 oz is a perfect size and keep my water cold all day.”
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“The 20oz tumblers are perfect for both hot or cold drinks!”
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“The 20 oz tumbler is great for both cold or hot drinks!”
155 reviews mention size. 95% of them gave 4 or 5 stars.
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“It's just the perfect size for a nice cold drink!”
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“The only thing I'd change about this size is the lid, but this is still a superior product in a beautiful design!!”
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“It is the perfect size and not to heavy, I like everything about this tumbler!”
120 reviews mention lid & straw. 78% of them gave 4 or 5 stars.
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“The new tumbler lid is excellent with a tight seal.”
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“The lid seals perfectly so I don't have to worry about the lid popping off.”
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“I love the lid especially in summer, no flies or gnats!!”
108 reviews mention gifting. 99% of them gave 4 or 5 stars.
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“I got it as a gift for my sister because she loves purple, and I knew she would love the scrolly design on it and it absolutely is beautiful!”
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“He said he loved quite a few designs and that he was going to order them for Christmas gifts this year.”
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“This tumbler was a gift, and my best friend loved it.”
89 reviews mention leaks. 80% of them gave 4 or 5 stars.
Customer photos
Add your photoWhy the 20oz Tumbler
Your everyday coffee tumbler
Hot coffee, iced drinks and a slide lid that fits your cupholder.
Morning coffee
Made for your morning coffee
Vacuum-insulated stainless steel keeps coffee and tea hot up to 13+ hours.
“This tumbler really does keep my coffee hot for hours.”
Barbara, verified buyer Iced too
Iced coffee, water and more
Iced drinks stay cold up to 20+ hours*, and the mouth takes big ice cubes.
“The 20 oz is a perfect size and keep my water cold all day.”
Theresa, verified buyer In the car
Fits standard cupholders
7in tall and 3.43in wide with a non-slip rubber bottom: car, gym and stroller cupholders.
“I love this cup for times I want a little less to drink during the day and fits in car cup holder nicely.”
Carla, verified buyer At work
No sweat, no ring on your desk
The outside stays dry with ice inside, so there's no puddle on your desk or in your cupholder.
“I'm loving this design and size, its perfect for my energy drinks while at work.”
Elisabeth, verified buyer Sip on the move
A clear slide lid
Sip straight from the clear slide lid, no straw needed. It's splash-resistant, made for sipping upright, not for tossing in a bag.
“The new tumbler lid is excellent with a tight seal.”
Ron, verified buyer Make it a gift
Add a name with Personalize
Laser-engrave a name or short phrase, up to 25 letters and numbers, right above the add to cart button.
“This tumbler was a gift, and my best friend loved it.”
Lydia, verified buyer
COLDEST 20oz vs. the rest
How it Stacks Up
Hot coffee all morning, iced coffee all afternoon, in your cupholder.Tap any feature for the details.Hover any feature for the details.
| COLDEST 20oz | Others | |
|---|---|---|
| Hot 13+ hours
Vacuum-insulated stainless steel keeps coffee and tea hot for 13+ hours. A paper cup is cold in minutes. | ||
| Cold 20+ hours
Iced coffee, tea and water stay cold for 20+ hours, and the mouth takes big ice cubes. | ||
| No sweat, no soggy cup
The outside stays dry with ice inside: no ring on your desk, no puddle in your cupholder. | ||
| Splash-resistant slide lid
A clear sliding lid for sipping on the move, with no straw needed. It's splash-resistant, made for upright sipping (not for tossing in a bag). | ||
| Fits standard cupholders
7in tall and 3.43in wide, with a non-slip rubber bottom: car, gym and stroller cupholders. | ||
| Reusable, zero cup waste
One tumbler instead of a paper cup and plastic lid every morning. | ||
| New designs every Thursday
New colors and art drop every Thursday at 9:45am ET, in limited runs. | ||
| Laser engraving available
Add a name or short phrase (up to 25 letters and numbers) with Personalize, above the add to cart button. Allow 3 to 5 extra business days. |
