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 love that these are stainless steel instead of plastic. They’re a lot more durable and hold up much better with my kiddos, that tend to crack the plastic ones in no time. They are easy to clean, and my kids always request to drink out of them, since Spidey is their favorite.

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 recently purchased the 2pk Minnie 12oz DW SS Vac Kelso Tumblers, and I couldn't be happier with my choice! These tumblers are not only adorable with their Minnie Mouse design, but they are also incredibly functional. The double-wall vacuum insulation keeps my drinks hot or cold for hours, making them perfect for both coffee in the morning and iced drinks in the afternoon. The size is just right for on-the-go use, and the sturdy construction ensures they can handle a bit of rough treatment. Plus, the packaging in a remailer makes them a great gift option! Overall, I highly recommend these tumblers for anyone looking to add a touch of fun to their drinkware collection!

I got these for my 4 year old and thought he might be a little too old for them, but have found them to be the perfect water bottle to use around the house because they are spill proof. He loves the straw and it has a mechanism that prevents it from leaking if it tips over. The Spidey and Amazing Friends theme was the perfect choice and this is now his go to choice of cup. He can even easily screw on the lid by himself.

Truly love the Zak cups especially the metal ones! These are actually leak proof and better yet, they come as a 2 pack! I love the flexible straw so if my toddler runs with it he won’t get hurt like other cups. The designs are so cute! These are the perfect milk cups for us and use them daily!

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.

My daughter loves the princess designs on these cups! They are metal with a plastic straw inside and silicone straw to sip from. Cold, non carbonated liquids only. They indicate leak proof but they did leak a little when left on their side. They are really easy to clean. I feel like they are meant for older kids, like 3 and up because they are pretty wide and would be harder to hold in little hands.

These cups are vibrant and durable! They seal so no soils and are insulated so the kids drinks stay cold. Cups are small enough to fit in a car seat cup holder but tall enough to hold plenty of Juice. Great price and value!

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.