PURPOSE: To provide a next-to-skin wear which can be undressed as lying down in nightclothes or underwear in the bed by keeping both right and left sides of the body part of this wear open without seaming, attaching the collar strip around the neck, and opening the front closing, too.

CONSTITUTION: The front body 3 and the back body 4 are kept open without seaming them on both side edges, or made readily detachable using velcro tape and collar strip 1 is set around the neck so that the strip comes outside through the underwear or nightclothes one over another. The front body part is also opened to facilitate the undressing, thus, for example, after kid goes to sleep, this next-to-skin wear can be readily undressed, as they lie down in the bed. The wear is made from a material of high air permeation and moisture absorption.