Abstract: The invention relates to a vibration damper characterized in that it includes: a casing (10) delimiting an annular chamber (11) a piston (1) having a central ring (2) sliding in the annular chamber (11), which has an external contour of diameter greater than or substantially equal to the outside diameter of the central ring (2) so that the annular chamber (11) is divided into a first compartment (111) and a second compartment (112), two assembly elements disposed at the opposite ends of the piston, a first assembly element (6) being attached to the casing (10) and a second assembly element (7) being attached to the piston (1), at least one of said compartments (111, 112) including at least one knitted wire metal cushion, a damping fluid filling the annular chamber (11), including the interstices between the meshes of the metal cushion(s) (21, 22).