A flexible package for accommodating a multiplicity of compressed articles, having a substantially parallelepiped-shape comprising: a front wall, a rear wall, a first and second opposite side wall (4, 5), a third and fourth opposite side wall (6, 7) and a pair of gussets (10, 11); a first panel, the first panel forming the front wall, a portion of each of the first and second opposite side wall (4, 5) and a portion of the fourth side wall; a second panel, the second panel forming the rear wall, a portion of each of the first and second opposite side wall (4, 5) and a portion of the fourth side wall; wherein the first and the second panel (8, 9) are connected to each other at the first and second opposite side wall (4, 5) along first and second side seams (12, 13); a third panel, the third panel forming the third side wall; wherein the third panel comprises the pair of gussets (10, 11); wherein each gusset (10, 11) is located at the respective first or second side wall (4, 5); wherein each gusset comprises an internal panel and an external panel; wherein the internal panel and external panel (16, 17) of each gusset are made of triangular portions of the third panel; wherein the internal and external panel (16, 17) of each gusset are coextensive at a first and second fold line (18, 19) to form a pocket; wherein the first and second fold line (18, 19) of the pocket of each gusset converge and meet at a vertex; wherein the vertex of each gusset is joined to the respective first or second side seam (12, 13) at the first or second side wall (4, 5); wherein the internal panel of each gusset comprises an altitude extending from the vertex of each gusset towards the third side wall; wherein the altitude of the internal panel of each gusset has a length; wherein the internal panel of each gusset comprises a triangular area which starts from the vertex of each gusset towards the third side wall; wherein the triangular area of the internal panel of each gusset has an altitude which coincides with the altitude of the internal panel of each gusset; wherein the altitude of the triangular area of the internal panel of each gusset has a length which is from 1% to 30% of the length of the altitude of the internal panel of each gusset; wherein at least one gusset comprises an area of weakness located at least in the internal panel of the at least one gusset within the triangular area of the internal panel of the at least one gusset; and wherein the area of weakness is located at or adjacent to the altitude of the internal panel of the at least one gusset; characterized in that the area of weakness is not a continuous slit; and wherein the area of weakness comprises a first and second portion of weakness (262, 263) which converge at an end point, wherein the end point is located at or adjacent to the altitude of the internal panel of each gusset (10, 11), wherein each of the first and second portion of weakness (262, 263) forms a first and second angle (β1, β2) with respect to the altitude of the internal panel of each gusset (10, 11), wherein the first and second angle (β1, β2) formed by the first and second portion of weakness (262, 263) with respect to the altitude of the internal panel of each gusset (10,11) are angles adjacent to each other and are from 1 degree to 179 degrees and are from 2 to 358 degrees together a front wall, a rear wall, a first and second opposite side wall (4, 5), a third and fourth opposite side wall (6, 7) and a pair of gussets (10, 11); a first panel, the first panel forming the front wall, a portion of each of the first and second opposite side wall (4, 5) and a portion of the fourth side wall; a second panel, the second panel forming the rear wall, a portion of each of the first and second opposite side wall (4, 5) and a portion of the fourth side wall; wherein the first and the second panel (8, 9) are connected to each other at the first and second opposite side wall (4, 5) along first and second side seams (12, 13); a third panel, the third panel forming the third side wall; wherein the third panel comprises the pair of gussets (10, 11); wherein each gusset (10, 11) is located at the respective first or second side wall (4, 5); wherein each gusset comprises an internal panel and an external panel; wherein the internal panel and external panel (16, 17) of each gusset are made of triangular portions of the third panel; wherein the internal and external panel (16, 17) of each gusset are coextensive at a first and second fold line (18, 19) to form a pocket; wherein the first and second fold line (18, 19) of the pocket of each gusset converge and meet at a vertex; wherein the vertex of each gusset is joined to the respective first or second side seam (12, 13) at the first or second side wall (4, 5); wherein the internal panel of each gusset comprises an altitude extending from the vertex of each gusset towards the third side wall; wherein the altitude of the internal panel of each gusset has a length; wherein the internal panel of each gusset comprises a triangular area which starts from the vertex of each gusset towards the third side wall; wherein the triangular area of the internal panel of each gusset has an altitude which coincides with the altitude of the internal panel of each gusset; wherein the altitude of the triangular area of the internal panel of each gusset has a length which is from 1% to 30% of the length of the altitude of the internal panel of each gusset;