A disposable absorbent product (10) includes a backsheet (14), a topsheet (12) overlaying the backsheet (14), and a core (16) disposed between the backsheet (14) and topsheet ( 12) for retaining fluid secreted by a wearer of the absorbent product (10). The core (16) has a length dimension (L), a width dimension (W), and a thickness dimension (t) orthogonal to the length and width dimensions (L,W). The core (16) includes first (21 ) and second (22) fluid storage structures, with the first fluid storage structure (21 ) at least partially surrounding the second fluid storage structure (22) in the thickness dimension (t).