Using another competing brand (which was nice at first as very soft for baby's skin) up to size 3, I noticed quite often leaks since my son became more mobile ... Nothing ventured nothing nothing, I decided to test the baby dry. In three weeks there were only 2 small leaks !! And again, nothing like before !! The skin of my baby coping well, no redness, they are easy to put the little animal that reminds us to the center of the layer, the elastic is very flexible can move my little as he wants. Now it's (finally!) Nights, and nothing to say layers hold well and dry almost to keep !! In any case, to recommend ... It made my life easier disappearance leaks ^. ^