A pull-on trouser is a kind of diaper between a diaper and a pair of trousers. It is used for a relatively large baby who has a sense of excretion and will take off his pants. The style of the pull-on pants is the same as that of the underwear, and it can be worn and detached, but the material is the same as that of the construction diaper, and the elasticity is good. Similar to a pant-type diaper, it is designed to be used as a transition between diapers and general underwear: it uses the same material and construction as the diaper, but can be directly put on and taken off, and is more close to the body and elastic than the diaper, especially suitable for learning to walk, A baby who has been training in toilets in due course.