A mooring line comprising a metal chain and at least one elastomeric element having an initial length; wherein the at least one elastomeric element is attached between two points of attachment on the metal chain, thereby defining a bypass section of the metal chain between the two points of attachment with a predetermined length that is greater than the initial length of the at least one elastomeric element; wherein one or more further sections of the metal chain are directly linked to the bypass section by chain links so as to transmit a tensile load directly from one section of the metal chain to the next; and wherein the at least one elastomeric element is arranged such that: when an initial tensile load, below a threshold tensile load, is applied to the mooring line in use, the at least one elastomeric element stretches from the initial length, to a second, longer, length wherein the bypass section of the metal chain between the two points of attachment is not taut and thus the initial tensile load is transmitted from and to the further sections of the metal chain through the at least one elastomeric element; when a further tensile load equal to or above the threshold tensile load is applied to the mooring line in use, the at least one elastomeric element stretches further from the second length to the predetermined length wherein the bypass section of the metal chain between the two points of attachment becomes taut, and thus the further tensile load applied to the mooring line is transmitted directly from and to the further sections of the metal chain through the bypass section of the metal chain, wherein the at least one elastomeric element is attached to the metal chain at each attachment point by a connector; and wherein each connector is shaped such that the section of metal chain between the two attachment points defines a bypass section of chain that is not able to come in contact with the at least one elastomeric element at least when the bypassed section of chain is taut; wherein each connector comprises a first attachment point for the at least one elastomeric element, a second attachment point for the metal chain and a third attachment point for the bypass section of chain, and the connector is shaped so as to pivot about the second attachment point, wherein each connector is L-shaped and comprises two substantially straight arms connected by a bend, wherein the first attachment point is provided at the end of one arm, the second attachment point is provided at the bend between the arms, and the third attachment point is provided at the end of the other arm, wherein one arm is longer than the other. when an initial tensile load, below a threshold tensile load, is applied to the mooring line in use, the at least one elastomeric element stretches from the initial length, to a second, longer, length wherein the bypass section of the metal chain between the two points of attachment is not taut and thus the initial tensile load is transmitted from and to the further sections of the metal chain through the at least one elastomeric element; when a further tensile load equal to or above the threshold tensile load is applied to the mooring line in use, the at least one elastomeric element stretches further from the second length to the predetermined length wherein the bypass section of the metal chain between the two points of attachment becomes taut, and thus the further tensile load applied to the mooring line is transmitted directly from and to the further sections of the metal chain through the bypass section of the metal chain, wherein the at least one elastomeric element is attached to the metal chain at each attachment point by a connector; and wherein each connector is shaped such that the section of metal chain between the two attachment points defines a bypass section of chain that is not able to come in contact with the at least one elastomeric element at least when the bypassed section of chain is taut; wherein each connector comprises a first attachment point for the at least one elastomeric element, a second attachment point for the metal chain and a third attachment point for the bypass section of chain, and the connector is shaped so as to pivot about the second attachment point, wherein each connector is L-shaped and comprises two substantially straight arms connected by a bend, wherein the first attachment point is provided at the end of one arm, the second attachment point is provided at the bend between the arms, and the third attachment point is provided at the end of the other arm, wherein one arm is longer than the other.