A sanitary article wearable as pants comprises a body or chassis 12 with a topsheet 13, a backsheet 14 and an absorbent core 15 interposed between the topsheet 13 and the backsheet 14. The article 10 has opposite extremities provided with closing side panels 16 extending laterally starting from at least one of said opposite extremities. The side panels 16 have proximal margins 160 connected to the body 12 in positions interposed between the topsheet 13 and the backsheet 14. In particular, the above-said proximal margins 160 of the side panels 16 are connected by thermal welding or ultrasound welding 170 to the topsheet 13 and adhesively 190 to the backsheet 14.
