(300ml, in various colours)
It's a Li'l Sippee Spill-Proof Flip Top Straw Cup that is intuitively designed for leak proof, bite free sipping. The Soft silicone spout helps support baby's oral development and is great for transitioning from bottle feeding to training cups. The integrated drip-proof valve is goof-proof for easy drinking.
Beginning he has a little difficulty from sucking so much air to get to the water, but after a day of training, he got the gist and now he's using it very well!