EXTERIOR MATERIAL AND WIRE HARNESS

An exterior material is a sheet formed with diamond-shaped recesses in a regular and adjacent arrangement in a width direction and a longitudinal direction, and is formed in a tubular shape by being bent in the width direction. The recesses are each formed in a square pyramid shape, and includes a first valley portion extending along the width direction and a second valley portion extending along the longitudinal direction. The first valley portion and the second valley portion intersect at an apex of the square pyramid shape. Four interior angles of each of the recesses are all right angles.