A tubular outer member which houses and protects a conductive path, the tubular outer member includes a fixing member mounting portion in which a conductive path fixing member is to be mounted so as to fix the conductive path. The fixing member mounting portion includes a guide groove configured to guide a conductive path winding portion of the conductive path fixing member extending like a line or a belt, and a pair of lead-in/out portions. The conductive path winding portion is to be inserted to and pulled out from the pair of lead-in/out portions.