Baby diapers are packaged in plastic bags, made of cotton. They absorb urine instantly to prevent wetness, and have an excellent breathability function to keep baby's skin dry. The diaper sizes available include XL for babies over 13 kilograms, L for babies weighing 10-14 kilograms, M for babies weighing 6-10 kilograms with 8 pieces per package, and S for babies weighing 3-6 kilograms with 9 pieces per package.