Richell AQ Clear Straw Mug 450ml (7M+)A large capacity 450ml that suitable for growing kids Transparent material made from Tritan A fashionable clear bottle Closes tightly and is hard to leak Since the tip shape of the mug and the mouthpiece are the same in the cup, you can step up from mug to straw mug without any discomfort Comes with a belt that is easy for children to carry Bottom cover made from silicone material prevent scratches