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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
133 ratings52 reviews
  1. 5 stars89% (119)
  2. 4 stars6% (8)
  3. 3 stars3% (4)
  4. 2 stars1% (1)
  5. 1 star1% (1)

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Showing 51-52 of 52 reviews
Nov 21, 2025
Samantha
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?6G9IT5PH3MDF17265765869
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
Sara
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?6G9IT5PH3MDF17265765869
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.