Contigo Kids Leighton Spill-Proof Tumbler with Straw, Ages 3+, Pink and Purple, 14 oz, 2 Pack

These cups are amazing. They are much bigger than what they look in pictures and my daughter has been using this same brand but the to go cups and the 360 toddler cups because she's picky. Well, she loves these and I did the shake test as well as a throw test. You can shake, throw, and beat the bottom of these cups when they're upside down and they do not leak you can shake, throw, and beat the bottom of these cups when they're upside down and they do not leak. All of my daughter's cups started to leak after a couple weeks or months of using them so I will be indefinitely switching to these cups. Plus, if you have a child that refuses to take medicine, then I recommend this wholeheartedly because my daughter is on anabiotic and we have to mix it in with her drinks. Otherwise she won't take it and she can taste it in food so we fill a cup halfway with water and the rest was sweet tea and put her medicine in it because for whatever reason, Big Pharma refuses to make flavorless medication. I was able to put a dose and a half in this cup with water and sweet tea and she drank the entire thing.