An infant's outfit typically consists of a layette and a onesie. A layette is a set of clothing and accessories for a newborn baby, usually given as a gift. It typically includes items such as sleepwear, blankets, and other small items. A onesie is a type of bodysuit for an infant or young child, typically made of cotton or a similar fabric. It is designed to be worn over the diaper and fastened with snaps at the crotch.