Merries, Japan’s No.1 selling diaper for last 10 years. Gentle on the skin and trusted by Japanese parents for their exceptional breathability and superb absorbency since 1983. It has Super Absorbent which highly breathable and ultra soft allow your active baby stays dry and comfortable. Breathable Soft Sheet The skin-friendly wavy top sheet allows air to flow freely between the diaper and skin so it does not stick on baby's skin. Ultra Softness Flexi-fit "W" Shape The softness transforms into a flexible "w" shape at the crotch area to accommodate baby's limb movement.