Merries Diapers are absorbent, airy, soft and always gentle to your baby's skin. They have exceptional breathability to keep skin dry and comfortable, a dual channel super absorbent core to instantly lock away fluids and soft poo, and raised side gathers to prevent leakage. They also have a unique Flexi-fit W shape at the crotch area and a snug Comfort Fit waist band for gentle comfort and to allow flexible movement for your active baby to play in utmost comfort. Merries also have color changing wetness indicators to let you know when it is time to change the diaper. Merries is the No. 1 brand in Japan! For babies 9-14 kg which is 19-30 Pounds.