FIELD: hygiene.SUBSTANCE: permanently closed tight underpants contain elastic expandable body and liner located in main part. Insert is connected to front waist region and back waist region. Insert includes a liquid-impermeable base sheet and sealed flap connected to base sheet to create a fluid-tight bag. Insert also includes a first intermediate member and second intermediate element are elastically extensible in longitudinal direction and transverse direction.EFFECT: properties of bag and main part material provide required for comfort setting and protection against leakage.21 cl, 2 tbl, 40 dwg