A top sheet includes a sheet body (1) having a flat liquid pervious base wall (11) with first and second surfaces (111, 112) that are opposite to each other in a normal direction (Z) relative to the sheet body (1). The base wall (11) has front and rear edges (113, 114) that are opposite to each other in a longitudinal direction (Y). The sheet body (1) further has a plurality of protrusions (12) that protrude from the first surface (111) of the base wall (11) and that are distributed along the longitudinal direction (Y) as well as a widthwise direction (X) which is transverse to the longitudinal direction (Y). The protrusions (12) are arranged in such a manner to form a plurality of open fluid channels (14) thereamong. The fluid channels (14) extend from the front edge (113) to the rear edge (114) of the base wall (11), and have dimensions in the normal and widthwise directions (Z, X) sufficient to provide capillary action.
