The present invention relates to an article (1) comprising a chassis (2) and a belt (3). The belt (3) is separable from the chassis (2) and is arranged to be placed around the waist of a wearer. The belt (3) comprises first elastic means (22) for allowing stretching of the belt (3) during use in a lateral direction. The chassis (2) comprises at least a first layer (4) of a conformable material for the user. The chassis (2) comprises longitudinal sides (5, 6) and lateral sides (7, 8) and is divided into a front portion (9), a rear portion (10) and a crotch portion (11) located between the front portion (9) and the rear portion (10) in a longitudinal direction. The front portion (9) and/or the rear portion (10) of the chassis (2) comprises a pair of first fastening means (12) being separate with a first distance (L1). The chassis (2) is arranged to be detachably attached to the outer surface (18) of the belt (3) by means of said first fastening means (12). Said outer surface (18) comprises second fastening means (19) arranged to be detachably attached to the first fastening means (12). The chassis (2) comprises a pair of first stretch markings (13) being related to the first distance (L1). The belt (3) comprises a pair of second stretch markings (16) marking out a second distance (L2) when the belt (3) is in a relaxed state and a predetermined third distance (L3) when the belt (3) is in a stretched state. The first stretch markings (13) are intended, in the relaxed state, to be positioned in conjunction with the second stretch markings (16) or within the second distance (L2) for allowing the chassis (2) to be attached to the belt (3) in the relaxed state via the first fastening means (12) and allowing the belt (3) to be stretched into the third distance (L3) without jeopardizing the fastening of the first fastening means (12).