Even after a diaper absorbs pee, the density of the core of a diaper determines if pee leaks or stays in the diaper.
The video shows that many leading brands have cores that are very loose.
When toddlers move, this causes the core to split, leading to leakage spots.
Pee-Ka-Poo’s Permasorp Core doesn’t split despite movement even from the most active toddlers, therefore preventing leakage.