Wire harness

A wire harness comprising:

• an exposed conductor portion, including a splice portion, where a bundle of partially exposed conductors of a plurality of insulated wires are joined together;
• each of the plurality of insulated wires configured with a respective coating material, each of the respective coating materials having a respective coating material end portion adjacent to the exposed conductor portion;
• and
• a waterproofing agent continuously covering outer peripheral surfaces of coating material end portions adjacent to the exposed conductor portion;
• wherein a gap between adjacent insulated wires of the plurality of insulated wires is sealed with the waterproofing agent at the respective coating material end portions adjacent to the exposed conductor portion, and
• at least one insulated wire of the plurality of insulated wires has a flow path through which gas flows, the flow path being created in gaps between strands that constitute the conductor of the insulated wire and reaching from a coating material end portion opposite to the respective coating material end portion adjacent to the exposed conductor portion to the splice portion.