The present invention protects, a disposable diaper with two opposite transverse sides, two opposite longitudinal sides, a front portion, a back portion and a crotch portion, basically formed by a chassis, a pair of front ears placed in the front area of the diaper, a pair of rear ears placed in the back area of the diaper, a traditional fastening system consisting of a pair of fastening elements joined or associated to the rear ears and a front band or tape and an additional fastening system, such that the additional fastening system is formed by at least one additional fastening element placed on the outer side of each one of the front ears of the diaper that are attached to the inner part of the diaper when placing it on the user.