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Customer reviews for Zak Designs 12-oz. Stainless Steel Double-Wall Tumbler for Kids with Straw, 2-Piece Set for
Zak Designs 12-oz. Stainless Steel Double-Wall Tumbler for Kids with Straw, 2-Piece Set
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4.5 out of 5 stars
stars371 ratings207 reviews
  1. 5 stars77% (285)
  2. 4 stars10% (36)
  3. 3 stars4% (14)
  4. 2 stars3% (12)
  5. 1 star6% (24)

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Showing 201-207 of 207 reviews
Mar 3, 2025
LC
1 out of 5 stars review

Rusted

Rusted only 5 weeks after purchasing it, and average usage would be less than 1/3 of the total days.

Helpful?15STGC91CF8P15932050236
reply from Zak Designs Customer Support

On behalf of the zak! family, we’re sorry that you weren’t 100% satisfied with this product. Please reach out to our amazing Customer Care Team at customerservice@zak.com , and we will do everything we can to remedy this for you.

Aug 26, 2023
Nekramer30
3 out of 5 stars review

Leaks

Definitely keeps drinks cold, but it leaks if not upright. I use these for my sons lunch and it makes a mess every time it falls over.

Helpful?15STGC91CF8P15932050236
reply from Zak Designs Customer Support

Hello from the Zak Consumer Care Team,<br /><br />We apologize for the challenge you have had with your Zak product. We would like the opportunity to make this right. Please contact our Amazing Customer Care Team: customerservice&#64;zak.com.

May 12, 2023
Mama_x5
2 out of 5 stars review

Leaky

So disappointed with the lids, my daughter was so happy for these cups only for it to leak when she tipped towards her it to drink!

Helpful?15STGC91CF8P15932050236
reply from Zak Designs Customer Support

Hello from the Zak Consumer Care Team,<br /><br />We apologize for the challenge you have had with your Zak product. We would like the opportunity to make this right. Please contact our Amazing Customer Care Team: customerservice&#64;zak.com.

Sep 30, 2022
Andrea
3 out of 5 stars review

Not as solid as it looks!

I got the bluey design and so far no leaks but my toddler threw it on the grow and the bottom cup popped out! so disappointed.

Helpful?15STGC91CF8P15932050236
reply from Zak Designs Customer Support

Hello from the Zak Consumer Care Team,<br /><br />Thank you so much for taking the time to leave us this review!

Apr 22, 2022
Rach
5 out of 5 stars review

worth it

My 4 year olds love them. They held ice all night and will be perfect for hot summer days.

Helpful?15STGC91CF8P15932050236
reply from Zak Designs Customer Support

Hello from the Zak Consumer Care Team,<br /><br />Thank you so much for taking the time to leave us this review!

Apr 1, 2023
Krob1
3 out of 5 stars review

Cute design. NOT leak-proof

My toddler daughter lives the cup, but when it tips and remains on its side it leaks water EVERYWHERE.

Helpful?15STGC91CF8P15932050236
reply from Zak Designs Customer Support

Hello from the Zak Consumer Care Team,<br /><br />We apologize for the challenge you have had with your Zak product. We would like the opportunity to make this right. Please contact our Amazing Customer Care Team: customerservice&#64;zak.com.

Apr 5, 2024
Char
3 out of 5 stars review

Ok but not great

This cup still leaks .

Helpful?15STGC91CF8P15932050236
reply from Zak Designs Customer Support

On behalf of the zak! family, we’re sorry that you weren’t 100% satisfied with this product. Please reach<br />out to our amazing Customer Care Team at customerservice&#64;zak.com , and we will do everything we can to remedy this for you.