Perfect size for our 3year old grandson. Fits perfect in his car seat and stroller. We add 2 icecubes to keep it cold and works great for our trips to the park and holds the perfect amount to keep him hydrated for our adventures.

The Zak Design 12-oz. Stainless Steel Double-Wall Tumbler was a big hit with my grandsons. They loved the colors and designs. I tested them to see how long they would hold ice, they held ice for over 12 hours.

Very youngster friendly. Keeps drink at preferred temperature. Spill proof drinking cups. Youngsters love it. Been dropped several times. Very durable. Very stylish appearance on the outside. Kiddo loves the color. Very reasonable price.

Great cups no issues would say 5 stars but the metal dents easily and when my pre schooler gets on the sand pit the cups get sand particles caught in the lid and straw. Apart from that I have no issues with the cup.

I have bought this brand of cups before but never the metal ones. These leak out the sides no matter what I do. Super disappointed about these because we love bluey.

When I first used this I was originally happy. Maybe I got a defective item. But I’m now concerned how the writing was just coming off as I washed the cup for the first time in the sink. I did write Sam’s club and they are sending a replacement. But this does concern me. Especially for a child’s cup. What is making the writing just wipe off? What if my child has put that in his mouth? Is it toxic? What even is that, that makes it just wipe off??? I’ll attach a photo. So weird. We will see how the replacement goes. As of now I don’t recommend

I have several sets of these for the grandkids. They are spill proof which is awesome. They also keep beverages cold. Just so you know, you have to suck pretty hard on the straw to get the fluid out which is great for toddlers learning how drink from a cup. They can't get too much too fast. This also helps to prevent guzzling. You can go to the Zak website and order extra straw sets if your little one is a chewer. Highly recommend these cups. They are cute, spill proof, and keep drinks cold. Can't beat this price either!

I’ve been searching for a two pack of these tumblers for my daughter for a while but all I could find was a plastic set. Then this came along. I saved one for her birthday and gave one to her now. Minus the fact that the rubber band comes off the top, the design is great. It does leak sometimes though, not terribly, just enough to question where the water came from. It keeps her water cool and it’s easy to clean In comparison to almost EVERY kid cup out there. I’d definitely buy more!

I love these cups and my kids love it more. My 5 years old was excited to have a new cup for school. No leakage what so eve, it does conserve the water temperature, I only try it for cold water by the way. It is easy to clean because my baby enjoy cleaning her own cup. My suggestion is that a little straw cover for sanitation reason will make this cup the best I ever used.

I have been using these cups for some time now since a lot of reviews said they were leak proof. They were: at least for the first couple of uses. Then the contents would start oozing back out through the straw after a couple of uses. Fist I thought I had just fallen on a faulty product. Bought another set and same thing happened. And then the straws stain after some time and the plastic part stops fitting right. Overall nice cups just don’t let sit with fluid on a surface for too long.