WIRE HARNESS

A wire harness having a bent router configured to be routed in a bent manner in a vehicle, the wire harness including: a wire; an exterior tube enclosing an outer peripheral surface of the wire; and a heat transfer tube having a rectangular tubular shape, provided between the wire and the exterior tube, and contacting an entire periphery of both the outer peripheral surface of the wire and an inner peripheral surface of the exterior tube, wherein the wire has an exposed part not covered by the heat transfer tube.