As with any cup, it is important it comes apart easily to be cleaned. This breaks down into 5 parts, very easily taken apart, washed, and put back together. The only thing I had to learn when using this cut was to realize the lid displaces some of the liquid in the cup, so I had to be sure not to fill it too high or it would overflow as I tightened the lid. Obviously user error. My kid loves the straw.See full review