COVER MEMBER AND WIRE HARNESS

A cover that includes an exterior tube configured to be attached to a protective tube through which an electrical wire is inserted; and a ventilation formed integrally with the exterior tube and configured to allow passage of gases and restrict passage of liquids, wherein: the exterior tube has a through hole communicating between an inside and an outside of the exterior tube, the ventilation includes a support having an opening and a ventilation film covering the opening of the support, the support is mounted on the exterior tube by being embedded in an inner wall surface of the through hole, and the ventilation is supported by the support around the opening without being embedded in the inner wall surface of the through hole.