S.S.
I always use a sippy cup that is a no leak sippy cup made by gerber or the first years. I also never use the cups that have the plastic attachment to the lids to keep them from leaking. The reason why is you cant clean the plastic attachment because the holes are to small and it starts to cause build up. Therefor it is not a clean cup. Thought I would let you know from my experience. little about me..27 stay at home mom trying for number 2.. Isaiah is 2