summary “dressing diaper” provided is an underwear-type diaper that can be easily wrapped around both open legs in the shape of a child under six months to one year old. the underwear diaper (10) for a child under six months to one year of age is such that both side edges of a front and rear waist panel (18, 19) provided with an elastic waist body are joined together. in a seam (20), a waist opening edge (22) being formed by outer edges (18a, 19a) of the waist panels, and a pair of leg opening edges (23) being formed by both side edges ( 13c, 13d) of a panel between legs (13) and inner edges (18b, 19b) of the front and rear waist panels. when the seam connection is released and the underwear diaper (10) is extended in a flat shape, the dimensions (l1) of the spacing between the outer edges will be in the range of 300-400 mm, and the waist elastic bodies passing through the seam, the dimensions (12) of the spacing between the waist elastic body at the side of the front waist panel closest to the inner edge of the front waist panel and the waist elastic body at the rear waist panel closest to the inner edge of the front waist panel. rear waist panel being at least 55% of the dimensions of the spacing between the outer edges. 1/1resumo “fralda de vestir” provida é uma fralda tipo roupa íntima que possa ser passada sem dificuldade em torno de ambas as pernas abertas em forma de m de uma criança com menos de seis meses a um ano de idade. a fralda tipo roupa íntima (10) para uma criança com menos de seis meses à um ano de idade é tal que ambas bordas laterais de um painel de cintura frontal e traseiro (18, 19) provido com um corpo elástico de cintura seja sejam unidas em uma costura (20), uma borda de abertura da cintura (22) sendo formada por bordas externas (18a, 19a) dos painéis de cintura, e um par de bordas de abertura das pernas (23) sendo formado por ambas bordas laterais (13c, 13d) de um painel entre pernas (13) e bordas internas (18b,19b) dos painéis de cintura f