Method for producing an elasticated chassis web for use as a continuous and coherent layer in a disposable pant garment, comprising the steps of: a) feeding a continuous base web along a production path in a machine direction, MD, the continuous base web having a cross machine direction, CD, transverse to the machine direction, MD, and parallel side edges (5,6) in the machine direction and having leg edge segments and crotch segments extending in the cross machine direction, CD, and alternating in the machine direction, MD; b) stretching first and second continuous elastic elements (10,11); c) feeding said first and second continuous elastic elements in said machine direction, MD, along first and second regularly undulating wave-shaped curves (12,13), said curves (12,13) having equal wave length, l, and having wave crests (14,15) directed towards said side edges (5,6) of said continuous base web and wave troughs (16,17) directed away from said side edges (5,6) of said continuous base web, said wave crests and wave troughs of said first wave-shaped curve being in register with said wave crests and wave troughs of said second wave-shaped curve with said elastic elements (10,11) being at a maximum distance from each other within said leg edge portions of said continuous base web and with said elastic elements (10,11) being at a minimum distance from each other within said crotch segments of said continuous base web; d) attaching said first and second stretched elastic elements (10,11) to said continuous base web along said first and second regularly undulating wave-shaped curves (12,13) in said leg edge segments and said crotch segments; characterised by the further steps of: e) forming crotch cut-out pieces of said continuous base web in said crotch segments, f) simultaneously forming cut-off crotch segments (22,23) of said stretched elastic elements (10,11) being attached to said cut-out pieces of said continuous base web; and g) creating holes in said crotch segments of said continuous base web by removing said crotch cut-out pieces from said continuous base web together with said cut-off crotch elastic segments (22,23) h) covering said holes in said continuous base web by a supplementary crotch material, wherein said supplementary crotch material is in the form of a continuous web, and attaching said supplementary crotch material to an inner, wearer-facing side of said base web after cutting out and removing said crotch cut-out pieces, such that said supplementary crotch material is exposed through said holes in said continuous base web. a) feeding a continuous base web along a production path in a machine direction, MD, the continuous base web having a cross machine direction, CD, transverse to the machine direction, MD, and parallel side edges (5,6) in the machine direction and having leg edge segments and crotch segments extending in the cross machine direction, CD, and alternating in the machine direction, MD; b) stretching first and second continuous elastic elements (10,11); c) feeding said first and second continuous elastic elements in said machine direction, MD, along first and second regularly undulating wave-shaped curves (12,13), said curves (12,13) having equal wave length, l, and having wave crests (14,15) directed towards said side edges (5,6) of said continuous base web and wave troughs (16,17) directed away from said side edges (5,6) of said continuous base web, said wave crests and wave troughs of said first wave-shaped curve being in register with said wave crests and wave troughs of said second wave-shaped curve with said elastic elements (10,11) being at a maximum distance from each other within said leg edge portions of said continuous base web and with said elastic elements (10,11) being at a minimum distance from each other within said crotch segments of said continuous base web; d) attaching said first and second stretched elastic elements (10,11) to said continuous base web along said first and second regularly undulating wave-shaped curves (12,13) in said leg edge segments and said crotch segments; characterised by the further steps of: e) forming crotch cut-out pieces of said continuous base web in said crotch segments, f) simultaneously forming cut-off crotch segments (22,23) of said stretched elastic elements (10,11) being attached to said cut-out pieces of said continuous base web; and g) creating holes in said crotch segments of said continuous base web by removing said crotch cut-out pieces from said continuous base web together with said cut-off crotch elastic segments (22,23) h) covering said holes in said continuous base web by a supplementary crotch material, wherein said supplementary crotch material is in the form of a continuous web, and attaching said supplementary crotch material to an inner, wearer-facing side of said base web after cutting out and removing said crotch cut-out pieces, such that said supplementary crotch material is exposed through said holes in said continuous base web.