A romper is a single piece clothing which is mostly worn by new-born babies and toddlers. Generally, rompers are designed with ease of diaper change with closing on the legs for quick change without having to undress your baby. Just unbutton or unzip the closure and change the diapers. They mainly have long sleeves and long legs to keep the baby easily covered. They make a suitable toddlers wear when your baby is home and even when you take him out for an evening walk in his stroller.