Absorbent article with reduced absorbent core

An absorbent article comprising a liquid pervious topsheet, a liquid impervious backsheet, and an absorbent core positioned between the liquid pervious topsheet and the liquid impervious backsheet,

• said absorbent article having a first and second longitudinal edge and a first and second transverse edge;
• wherein the absorbent core comprises a top core sheet, a back core sheet, and absorbent material arranged partially between the top core sheet and the back core sheet;
• wherein at least one of the top core sheet and the back core sheet comprises at least one attachment portion which is attached to the other one of the top core sheet and the back core sheet forming at least one attachment zone, the absorbent article further comprising a second top core sheet and a second back core sheet, said second top core sheet comprising at least one second attachment portion which is attached to the second back core sheet forming at least one second attachment zone.