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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
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 181-190 of 207 reviews
Nov 29, 2021
Tobysnana65
5 out of 5 stars review

GREAT CUPS

[This review was collected as part of a promotion.] These are nice stainless steel cups that come with a straw that are great for traveling with kids. My grandson likes star wars so I picked up that one which comes in a set of two. These cups are 12 ounces which is perfect for kids and since they are stainless steel they actually keeps the drink cold. Very satisfied with these so if you have kids give them a try.

Review from Zak Designs
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Feb 2, 2025
Amy
1 out of 5 stars review

Faulty product

I bought these from Sam's after using other zak water bottles just like the purchased from other stores. These were bottles are completely faulty and leak from the lid even when it is completely screwed on. Terrible waste of money and it damaged my wood floors where it leaked.

Helpful?15STGC91CF8P13608306077
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@zak.com , and give us a chance to bring that smile back for you.

Nov 25, 2021
chio408
5 out of 5 stars review

Easy Cleaning

[This review was collected as part of a promotion.] I got these tumblers to try. I wanted to see how effective the straws were in staying clean. I cleaned them with each use. The straws never built up any residue in the straws. The lids stayed clean around the rim. Even when they got tipped over, it rarely spilled over. Overall, it was a time saver with cleaning it and cleaning after my little one.

Review from Zak Designs
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Nov 20, 2021
Grant730
5 out of 5 stars review

Great for kids (and older adults, too!)

[This review was collected as part of a promotion.] Our 8-year-old loves Spiderman, and we thought these cups would be a hit and a good replacement for the old "sippy cups". As it turns out, they were even better than expected. The cups are well made and leak-proof, with bright colors and fun designs. They are also very easy to clean, with wide openings and easily removable parts. The unexpected bonus was that these cups also work very well for my 89-year-old father-in-law. Unfortunately, he is bed-ridden and has a difficult time using a regular cup due to arm tremors. These cups work perfectly for him, allowing him to sip easily and not spill a drop. They also seem to keep drinks cooler for longer than other cups. All-in-all, a win for all generations!

Review from Zak Designs
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Nov 30, 2021
Cobainian
5 out of 5 stars review

Love these

[This review was collected as part of a promotion.] I love these stainless steel cups. The Disney Princess prints that we have are so cute. The stainless steel keeps the drink cold longer than your typical plastic cup. The straw comes apart so it’s easy to keep clean. So far there haven’t been any spills either!

Review from Zak Designs
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Feb 16, 2025
Lboat77
1 out of 5 stars review

Not worth it

I bought 2 packs of these right before Christmas for my Grandkids It is now just Feb and my daughter said that the pieces inside the top of the straw are deteriorating and have almost completely came out so they are leaking.I paid 16.98 for these and they should have lasted much longer than this.But in checking the website it says warranty does not include the straw which is crazy it is part of the cup.Very unhappy Grandmother

Helpful?15STGC91CF8P13608306077
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@zak.com , and give us a chance to bring that smile back for you.

Sep 3, 2025
Rebecca
1 out of 5 stars review

Disappointed

Do not purchase. They leak.

Helpful?15STGC91CF8P13608306077
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@zak.com , and give us a chance to bring that smile back for you.

Aug 18, 2025
Teresa
2 out of 5 stars review

cute, but leak horribly. I'm throwing them away.

Helpful?15STGC91CF8P13608306077
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.

Jul 6, 2023
mhbflora
1 out of 5 stars review

Worst cup I ever bought

Leaks all the time - the kids don’t even want to use them anymore.

Helpful?15STGC91CF8P13608306077
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. ‍

Jan 13, 2025
Ash
1 out of 5 stars review

Definitely Leaky

Cute and seem to be durable but they leak if tipped over. I bought these specifically because theyre supposed to not leak.

Helpful?15STGC91CF8P13608306077
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&#64;zak.com , and we will do everything we can to remedy this for you.