Implant with multi-layer bone interfacing lattice

An implant, comprising:

• a body having a central core and a bone contacting surface, the body including a bone interfacing lattice;
• wherein the bone interfacing lattice includes at least two layers of elongate curved structural members;
• wherein the at least two layers of elongate curved structural members includes a first layer disposed closer to the central core and a second layer adjacent the first layer and defining the bone contacting surface;
• wherein each of the at least two layers defines an open architecture configured to receive bone ingrowth;
• wherein the elongate curved structural members of the first layer have a first gauge and the elongate curved structural members of the second layer have a second gauge;
• wherein the second gauge is smaller than the first gauge;
• and wherein an interface between the first layer and the second layer is a transition region having a thickness within which the elongate curved structural members of the first layer are intermingled with the elongate curved structural members of the second layer such that a boundary of the first layer overlaps with a boundary of the second layer.