We wanted to design a cup which was nice and simple without being wobbly and easily 'knock-over-able', having spent more than a few hours on the floor with kitchen roll!
Valves in straws make it difficult to suck so they were out - instead we made the cup convert to an open cup so that open sipping (much better for orthodontic development) could be encouraged as they become more able.
And, by making the insides curved it meant that the straw could always reach the drink.
Easy to pick up, hard to knock down!
Fun training cup which grows with your child
Converts from lidded cup to open tankard for open sipping as user becomes more able
Wide 'anti-topple' base for stability
Curvaceous interior and flexible straw to reach the last few drops