An absorbent core (101, 701) comprising: a front portion; a back portion; a middle portion positioned between the front portion and the back portion; and a longitudinal axis extending along a length of said core (101, 701) and crossing said front, middle and back portions (122, 126, 124), the absorbent core (101, 701) having a width extending perpendicular to said length and a perimeter comprising at least two opposing ends (102, 103) and at least two opposing sides (104, 105) positioned between said ends (102, 103), said core (101, 701) being a multi-layer core comprising at least two distinct core layers (702, 703), characterized in that a first core layer comprises a channel having a first shape and a second core layer comprises a further channel having a second shape and wherein the first and second core layers (702, 703) are disposed one on top of the other such that a third channel shape is formed along said core length and width, and wherein said first and second shapes are substantially the same and are different to said third shape, wherein the first core layer and the second core layer comprise at least one core wrap substrate ( 705, 706) enclosing a superabsorbent polymer therebetween and wherein a top layer of the core wrap is adhered to a bottom layer of the core wrap in regions of said core comprising the channel(s) (106, 106'), preferably such that substantially no superabsorbent polymer is present in said channel(s) (106, 106'), and in that the channel is continuous and interconnected at least along the length and the width of said core (101, 701) such that at least two channel portions (107,108) extending along said length are in fluid communication via a connecting channel portion positioned proximal to said back portion or front portion, preferably said back portion, and wherein the channel of the first core layer is in fluid communication with the further channel of the second core layer via at least two oppositely disposed connection areas. a front portion; a back portion; a middle portion positioned between the front portion and the back portion; and a longitudinal axis extending along a length of said core (101, 701) and crossing said front, middle and back portions (122, 126, 124), the absorbent core (101, 701) having a width extending perpendicular to said length and a perimeter comprising at least two opposing ends (102, 103) and at least two opposing sides (104, 105) positioned between said ends (102, 103), said core (101, 701) being a multi-layer core comprising at least two distinct core layers (702, 703), characterized in that a first core layer comprises a channel having a first shape and a second core layer comprises a further channel having a second shape and wherein the first and second core layers (702, 703) are disposed one on top of the other such that a third channel shape is formed along said core length and width, and wherein said first and second shapes are substantially the same and are different to said third shape, wherein the first core layer and the second core layer comprise at least one core wrap substrate ( 705, 706) enclosing a superabsorbent polymer therebetween and wherein a top layer of the core wrap is adhered to a bottom layer of the core wrap in regions of said core comprising the channel(s) (106, 106'), preferably such that substantially no superabsorbent polymer is present in said channel(s) (106, 106'), and in that the channel is continuous and interconnected at least along the length and the width of said core (101, 701) such that at least two channel portions (107,108) extending along said length are in fluid communication via a connecting channel portion positioned proximal to said back portion or front portion, preferably said back portion, and wherein the channel of the first core layer is in fluid communication with the further channel of the second core layer via at least two oppositely disposed connection areas.