I would honestly advise you to try the straw “take and toss” cups. I spent so much on every kind of sippy transition cup, and then someone suggested that kind to me- its body is kind of soft so you can push the liquid up a little to get the drink into your kiddos mouth, and then they kind of just learn to use a straw! Ive seen kids younger then a year even learn to master a straw with it.