Thin sanitary napkin capable of controlled deformation when in use

A sanitary napkin adapted to be worn in a crotch portion of an undergarment, said sanitary napkin comprising a main body with a longitudinal axis and two opposite longitudinal side areas, said main body comprising:

• a) a fluid-pervious cover layer;
• b) an absorbent system under said cover layer, said absorbent system having a central width of at least 60 mm;
• c) a liquid-impervious barrier layer under said absorbent system;
• d) said main body being characterised by a thickness less than about 4 mm;
• e) said main body being characterised by a flexural resistance of not less than about 400 g;
• f) said main body further comprises a plurality of preferential bending lines crossing one another and defining an array of crossing points;
• wherein at least one of said preferential bending lines extending obliquely in relation to said longitudinal axis on said main body, said at least one of said preferential bending lines extending from one longitudinal side area of the main body to an opposite longitudinal side area, crossing the longitudinal axis of the main body;
• g) wherein said array of crossing points form at least one preferential bending zone allowing said sanitary napkin to fold at said preferential bending zone in response to lateral compression applied to said napkin and permitting said napkin to acquire a three-dimensional deformation profile.