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Customer reviews for Zak Designs 16-oz Stainless Steel Double-Wall Tumbler for Kids with Straw, 2-Piece Set for
Zak Designs 16-oz Stainless Steel Double-Wall Tumbler for Kids with Straw, 2-Piece Set
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4.8 out of 5 stars
stars
116 ratings45 reviews
  1. 5 stars90% (104)
  2. 4 stars6% (7)
  3. 3 stars3% (3)
  4. 2 stars1% (1)
  5. 1 star1% (1)

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Showing 41-45 of 45 reviews
Nov 7, 2025
Reviewer name: Sylvia
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great Cups for kids

Perfect for grandkids

Helpful?6G9IT5PH3MDF17888218558
reply from Zak Designs Customer Support

Our goal is to give our customers products that help create everyday smiles. Thank you for letting us know we are accomplishing that goal!

Oct 18, 2025
Reviewer name: Lisa
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

BLUEY CUPS

PERFECT SIZE AND COLORS

Helpful?6G9IT5PH3MDF17888218558
reply from Zak Designs Customer Support

Thank you for taking the time to leave this review. Every member of the zak! family is focused on helping to create everyday smiles, and we hope we did that for you.

Jan 4, 2026
Reviewer name: SHERL
1 out of 5 stars
1 out of 5 stars review

I do not at all like the fact that there is a ball of lead in the base of these tumblers and that it could possibly dislodge and cause permanent damage to our children possibly death

Helpful?6G9IT5PH3MDF17888218558
reply from Zak Designs Customer Support

All of the accessible components of Zak Designs’ products are lead free.  We utilize 3rd party international testing laboratories to verify the lead-free status of our products.

Nov 21, 2025
Reviewer name: Samantha
5 out of 5 stars
5 out of 5 stars review

Must buy!

This cup is a game-changer! We took it to the pool our first day and the drink stayed ice-cold the entire time — even overnight! I was genuinely impressed. It's the perfect size for little hands, super durable, and doesn't leak at all. I love that we refilled it with water and the ice was still there!

Helpful?6G9IT5PH3MDF17888218558
reply from Zak Designs Customer Support

Our goal is to give our customers products that help create everyday smiles. Thank you for letting us know we are accomplishing that goal!

Jan 16, 2026
Reviewer name: Sara
2 out of 5 stars
2 out of 5 stars review

Not Leak-Proof

These are 100% not leakproof. I wanted them to be so bad! Ugh still on the hunt for a non-leak proof water bottle! They are very cute though.

Helpful?6G9IT5PH3MDF17888218558
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.