Munchkin® Miracle® 360° Spoutless Sippy Cup, 10 oz, Blue, Unisex

These cups are wonderful yes as stated in other reviews they are not completely spill proof if they are dropped or thrown very hard a little liquid will leak out. But we all know that small kids have strength that we have no idea where it came from so be it,my son love the cups and has no problem with them. Highly recommend these cups.

My toddler is constantly pouring out his drinks with other sippy cups, but he has trouble pouring out his drink with these because you have to pull back the rubber insert on top and he gives up after a while because it requires too much effort. Ha. These are well made and really are a miracle. I have replaced all of his other cups with these. When you clean these, be sure to pull out the top insert and the clear rubber O-ring off of the screw part of the lid to get it really clean.