Heinz Baby Basics First Tumbler
This was always my first choice of sippy cup for when my kids were first starting to drink from a cup. It is a perfect size for little hands - about 6 months old - and is spill proof.
The spout is small and slow flowing.
It also has a small cover that goes over the spout so you can pop it in the nappy bag knowing that the top is covered.
I like that it doesn't have handles because to me it is more of a natural progression to normal cups, which don't have handles.
The best sippy cup to start with!