gotta make sure the lid it tight and the kids gotta work a little hard at first but very good at not spilling/leaking barely walking kid got them figured out. Yelling at them to stop tilting them when they complain they are empty is the worst.

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.

My kids loves it but we was sent boys color instead of the minnies. It is practical, but i will suggest that it comes with a staw cleaner like every other brands. Also the straw does not stay fit, you have to push it haard. Overall it is okay

These are great cups for toddlers! They are well insulated and keep ice good for awhile. They have several cute themes that my kids loved. The straw comes out inside so it is very easy to keep clean!!

Love these cups. I have several different kinds for my grand daughters, but I think these may become my favorite. The stainless steel is easy to wash and keep clean. The top is a little more work to wash, but makes the cup leak proof.

I absolutely love these cups!!! So easy to clean!!

These are great. My grandchildren loved having their own special tumbler.

These spill proof stanley dupes are amazing for toddlers. My almost 2 year old can make anything spill and has difficulty with these. Lol

Bought these for my granddaughter and she loves them! I love them because they don't leak and they keep things cold.

Love these cups. They are easy to clean and put back together. More importantly, my daughter loves them.