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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
stars
371 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 141-150 of 207 reviews
Mar 23, 2023
Ashleigh
5 out of 5 stars review

Verified Purchase

Zak 12oz Stainless Cups

Great quality, easy to clean, cool design

Helpful?15STGC91CF8P13566272598
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!

Feb 16, 2024
K M
2 out of 5 stars review

Verified Purchase

Cute, not the best

Difficult suction for toddler to sip out of. Also the straw melted in the dishwasher on one end.

Helpful?15STGC91CF8P13566272598
reply from Zak Designs Customer Support

Our goal is to help create everyday smiles for our customers, but sometimes we know that we fall short of that goal. Please reach out to our amazing Customer Care Team at customerservice&#64;zak.com , and give us a chance to bring that smile back for you.

Feb 14, 2022
May
5 out of 5 stars review

Verified Purchase

Perfect for Toddlers

Great size and spill proof.

Helpful?15STGC91CF8P13566272598
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!

Jan 12, 2022
kkthebadassmama
5 out of 5 stars review

Verified Purchase

AWESOME!

AWESOME and doesn't leak! My grandson loves it.

Helpful?15STGC91CF8P13566272598
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! We are so glad he loves it!

May 7, 2023
Kristy
5 out of 5 stars review

Verified Purchase

I love these most of all

Best kid cups around

Helpful?15STGC91CF8P13566272598
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!

Jun 25, 2022
Lea M
5 out of 5 stars review

Verified Purchase

Great quality

We love them

Helpful?15STGC91CF8P13566272598
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!

Mar 31, 2026
Karar
4 out of 5 stars review

Cute but it leaks a little bit

I have a 3 years old and a 2 years old boys; they both like the cups. They are really cute and work great, but they leak a little bit.

Helpful?15STGC91CF8P13566272598
reply from Zak Designs Customer Support

Thank you for your review. We always appreciate it when our valued customers let us know how we’re helping create everyday smiles.

Aug 19, 2025
AW
3 out of 5 stars review

wouldn't recommend

cute and can keep drinks cold quite a while but straw leaks if tipped over and sometimes when moving it while it's upright. Big fan of zak products but let down by these.

Helpful?15STGC91CF8P13566272598
reply from Zak Designs Customer Support

Our goal is to help create everyday smiles for our customers, but sometimes we know that we fall short of that goal. Please reach out to our amazing Customer Care Team at customerservice&#64;zak.com , and give us a chance to bring that smile back for you.

Sep 13, 2025
Thomas
1 out of 5 stars review

These leak like crazy. Out the side, out the straw. If your kids are like mine, and completely fail to set their cup upright often, then best of luck.

Helpful?15STGC91CF8P13566272598
reply from Zak Designs Customer Support

Our goal is to help create everyday smiles for our customers, but sometimes we know that we fall short of that goal. Please reach out to our amazing Customer Care Team at customerservice&#64;zak.com , and give us a chance to bring that smile back for you.

Apr 17, 2026
anonymous
1 out of 5 stars review

Leaks

Got the Minnie ones and they leak on the sides like crazy. I would not recommend.

Helpful?15STGC91CF8P13566272598
reply from Zak Designs Customer Support

Our goal is to help create everyday smiles for our customers, but sometimes we know that we fall short of that goal. Please reach out to our amazing Customer Care Team at customerservice&#64;zak.com, and give us a chance to bring that smile back for you.