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expiredTattyBear | Staff posted May 5, 2026 8:55 PM

13.5oz CnGlass Double Wall Thermo Glass Cup: 4-Pk $20 or 2-Pk

$12

$23

47% off
Amazon
16 Comments
10.8K Views
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Deal Details
CnGlass via Amazon has select CnGlass Double Wall Insulated Coffee Mugs on sale as listed below when you apply the corresponding promotion code at checkout. Shipping is free w/ Prime or on orders $35+.

Note: You must be logged in to clip coupons and apply promo codes. If a code doesn't work right away, try applying it a few times across different interfaces such as mobile or desktop, as some codes may not apply consistently. If issues persist, refresh the page, re-enter the code, or revisit the cart before checking out.

Thanks to Deal Hunter TattyBear for finding this deal

Available:
  • 13.5oz Double Wall Thermo Glass Cup
    • 2-Pack $11.49 w/ code RJG9EE3A and $5 clipped coupon on item page
    • 4-Pack $19.99 w/ code RJG9EE3A and $5 clipped coupon on item page

Editor's Notes

Written by Wiznaz | Staff

Original Post

Written by TattyBear | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
CnGlass via Amazon has select CnGlass Double Wall Insulated Coffee Mugs on sale as listed below when you apply the corresponding promotion code at checkout. Shipping is free w/ Prime or on orders $35+.

Note: You must be logged in to clip coupons and apply promo codes. If a code doesn't work right away, try applying it a few times across different interfaces such as mobile or desktop, as some codes may not apply consistently. If issues persist, refresh the page, re-enter the code, or revisit the cart before checking out.

Thanks to Deal Hunter TattyBear for finding this deal

Available:
  • 13.5oz Double Wall Thermo Glass Cup
    • 2-Pack $11.49 w/ code RJG9EE3A and $5 clipped coupon on item page
    • 4-Pack $19.99 w/ code RJG9EE3A and $5 clipped coupon on item page

Editor's Notes

Written by Wiznaz | Staff

Original Post

Written by TattyBear | Staff

Community Voting

Deal Score
+29
Good Deal
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Top Comments

Bractar
181Comments
22Reputation
Double wall but both of them are very thin, feels cheap
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16 Comments

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Original Poster
Pro
Deal Hunter
May 5, 2026 9:24 PM
51.7K Comments
Joined May 2008
TattyBearMay 5, 2026 9:24 PM
Original Poster
Pro
Deal Hunter
51.7K Comments
Previous popular front page for the same price.
May 5, 2026 10:14 PM
181 Comments
Joined Jan 2015
BractarMay 5, 2026 10:14 PM
181 Comments

Our community has rated this post as helpful. If you agree, why not thank Bractar

Double wall but both of them are very thin, feels cheap
2
1
May 5, 2026 11:55 PM
60 Comments
Joined Feb 2024
MerryLinen225May 5, 2026 11:55 PM
60 Comments
Nice.
May 7, 2026 4:33 PM
108 Comments
Joined Nov 2018
TexvesMay 7, 2026 4:33 PM
108 Comments
Pro tip: never put these empty under an automatic ice dispenser. Learned that the hard way.
1
Pro
May 7, 2026 6:49 PM
1.7K Comments
Joined Dec 2017
lolopolo
Pro
May 7, 2026 6:49 PM
1.7K Comments
Similar deal on the actual Pavina glasses?
Pro
May 20, 2026 9:05 AM
2.1K Comments
Joined Jun 2011
mkdenar
Pro
May 20, 2026 9:05 AM
2.1K Comments
Quote from Bractar :
Double wall but both of them are very thin, feels cheap
Yup bought a similar 4 pack from costco now down to 2. Not very good at keeping drinks cold either
May 20, 2026 10:53 AM
1.1K Comments
Joined May 2007
think22May 20, 2026 10:53 AM
1.1K Comments
Quote from mkdenar :
Yup bought a similar 4 pack from costco now down to 2. Not very good at keeping drinks cold either
ugh. guess I'll have to pass. thanks

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May 20, 2026 3:42 PM
321 Comments
Joined Aug 2014
thedavidkMay 20, 2026 3:42 PM
321 Comments
This is 'thin' glass which is borosilicate glass. That's actually a good thing. It feels very thin, but I have a lot of cups made from this and it's super light and heat resistant. So it can handle temperature changes better than regular glass but it is more brittle. It's like the lab beakers you used to have in school that you put right over a burner.
May 20, 2026 3:44 PM
618 Comments
Joined Jan 2010
bobfatherxMay 20, 2026 3:44 PM
618 Comments
I have these and some of the Bodum glasses that these are copycatting. These glasses are actually HIGHER quality than the Bodum glasses. With that said, both these and the Bodum glasses are pretty fragile. You'll only drop these glasses one time, and as mentioned above, even an ice cube falling too hard can crack the glass.
1
May 20, 2026 4:01 PM
229 Comments
Joined Aug 2019
ZEISS10May 20, 2026 4:01 PM
229 Comments
4-pack promo not valid
Pro
May 20, 2026 5:09 PM
1.7K Comments
Joined Dec 2017
lolopolo
Pro
May 20, 2026 5:09 PM
1.7K Comments
Quote from bobfatherx :
I have these and some of the Bodum glasses that these are copycatting. These glasses are actually HIGHER quality than the Bodum glasses. With that said, both these and the Bodum glasses are pretty fragile. You'll only drop these glasses one time, and as mentioned above, even an ice cube falling too hard can crack the glass.
How do you know these are higher quality than Bodum (Pavina)? I'm genuinely curious as I use these all the time and while I do break some over time, these are so convenient and pleasing that I keep buying them again and again. It's about time to get a few replacements
May 20, 2026 5:32 PM
575 Comments
Joined Jun 2009
lalab0yMay 20, 2026 5:32 PM
575 Comments
Quote from mkdenar :
Yup bought a similar 4 pack from costco now down to 2. Not very good at keeping drinks cold either
What's the Costco brand? I doubt it's this CNglass or whatever. Without knowing that, it's just a generic statement for all double walled glass. Last time I bought from Costco it was bodum which is the name brand but even that was iffy.
May 20, 2026 7:12 PM
660 Comments
Joined Dec 2006
vagrant10May 20, 2026 7:12 PM
660 Comments
Quote from ZEISS10 :
4-pack promo not valid
I can't get it to work on the 4-pack either.
Pro
May 20, 2026 8:03 PM
2.1K Comments
Joined Jun 2011
mkdenar
Pro
May 20, 2026 8:03 PM
2.1K Comments
Quote from lalab0y :
What's the Costco brand? I doubt it's this CNglass or whatever. Without knowing that, it's just a generic statement for all double walled glass. Last time I bought from Costco it was bodum which is the name brand but even that was iffy.
I think it was bodum (different tho, design on the exterior and a handle), another commenter said these are better but they are both fragile

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May 20, 2026 8:16 PM
618 Comments
Joined Jan 2010
bobfatherxMay 20, 2026 8:16 PM
618 Comments
Quote from lolopolo :
How do you know these are higher quality than Bodum (Pavina)? I'm genuinely curious as I use these all the time and while I do break some over time, these are so convenient and pleasing that I keep buying them again and again. It's about time to get a few replacements
The Bodums are slightly larger in diameter and height, yet weigh about 10 grams less than the CN glasses. Also, my Bodum Pavinas have significant height differences between them and corresponding weight differences. The CN glasses are much more uniform in size (though not perfectly so).

The Bodums have a rounded inner bottom which makes it more risky to stir liquids (I drink water with fiber in the mornings). The CN glasses have a more squared off bottom that makes stirring easier.

Both keep water cooler better than a non double-walled glass. I think the Bodum has a slight edge here probably because they're dimensionally larger and thus have more interior air to act as an insulator.

The CN glasses do not have the rubber stopper on the bottom like the Bodums do. So zero risk of getting water inside the CN glasses.

I think that sums it up!

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