Fixed and removable absorbent cores for absorbent articles

A multiple use absorbent article comprising:

• a chassis absorbent unit having a chassis topsheet, a chassis backsheet, and a chassis absorbent core sandwiched between the chassis topsheet and the chassis backsheet;
• and
• an absorbent insert bonded to the chassis absorbent unit, a removable portion of the absorbent insert configured to be selectively removable from the chassis absorbent unit, wherein the absorbent insert comprises an insert topsheet, an insert backsheet bonded to the chassis topsheet, flaps positioned inwardly of a pair of longitudinal direction side edges of the absorbent insert, and an insert absorbent core sandwiched between the insert topsheet and the insert backsheet, the absorbent insert further including a line of weakness that provides for separation of the absorbent insert into the removable portion configured to be removed from the chassis absorbent unit, and a resident portion that remains bonded to the chassis absorbent unit, wherein the line of weakness is within or adjacent to the peripheral sealing region and wherein the line of weakness extends across the flaps,
• wherein the absorbent insert includes a removal device configured to assist a user in separating the removable portion of the absorbent insert from the chassis absorbent unit.