Wire harness

A wire harness comprising:

• a flat wiring member formed in a U shape, the flat wiring member including a first portion having a straight line shape, a second portion having a straight line shape, and an intermediate portion connecting an end of the first portion and an end of the second portion;
• a first case that holds the first portion;
• a second case that holds the second portion;
• and
• a coupling portion that couples the first case and the second case to each other, wherein
• the first case includes a first support wall that supports the first portion,
• the second case includes a second support wall that supports the second portion,
• the coupling portion is configured to couple the first case and the second case to each other in a state where the first support wall and the second support wall are aligned in a width direction of the flat wiring member, and
• the coupling portion includes a hinge portion capable of rotating the first case and the second case relative to each other to make the first support wall and the second support wall face each other.