I had ordered these for my grandchildren age 2 & 8. At first I thought they might not like them, but they both loved them. They easily fit in the car's cupholder and the straw make it very easy for them to drink. They loved the Star Wars design and I love that they don't spill. Great product.

My son uses different "spill-proof cups", but many still leak or spills if he accidentally knocks them over. However, this Zak 12 oz. Tumbler has proven to be a true Leak-Proof Cup. I chose this particular cup because I really loved the cute design & bright colors, but I also wanted a insulated cup that could keep his drinks cold no matter the season. This cup does a wonderful job at that! My son really likes the straw top and it's easy for him to drink from. I haven't had any issues with the cup leaking and it's very simple to clean and fill with liquids. Out of all the cups we've tried, this has definitely been a favorite and I plan on getting a more.

Just got these and am happy with them. They are sturdy and spill proof too. I like that the straw and mouthpiece both can be removed for easy cleaning. The pictures on the cups feel like they won’t come off after a few washes. The lids love Star Wars so they are excited to use them.

The lid and straw are dishwasher safe on top rack. The pictures on the cup itself wear off with each run of the dishwasher so I would recommend hand washing only. We have four young kids and these go everywhere with us (car, park, zoo, museums...). If the lids are tight it's hard to drink water out of them, but if you loosen the lid they leak. Our oldest is 5.5 and he does better so these are probably good for older kiddos.

Decided to try these out. Let me say they have some very nice features. First of all, they don't spill when you turn them upside down. The top part of the straw that goes in your mouth is soft silicone and won't deform or break like the plastic ones I've had before. Inside straw that goes into the liquid is removable to clean it. The cup itself holds 12 oz and is made of stainless steel. Well put together, easy to clean, and appear very sturdy. On the outside of the cup are pictures of the Disney princesses. My 4-year-old loves them! Would highly recommend.

We have these for our boys and daycare. I LOVE THEM. Easy to clean. Keeps drinks cold for longer. And of course the kids love the designs. Obviously the fact that it is easy to clean is a huge deal for me. I’m cleaning all the time with daycare. So if it is easy. That’s a win for me.

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.

My girls screamed and jumped when these cups arrived! They loved the princess designs, while I loved the tight fitting kids with guilt in straws! These cups are leak proof, insulated, and anti-microbial since they’re stainless steel! Win win at our house!

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!

My grandkids, ages 2 and 3, loved these cups! they are just the right size for small hands to hold, and are leak proof. I also like the fact that they are stainless steel lined, so cleaning is easy and they don't stain. They keep drinks cold for a long time as well.