Disclosed is an exterior case. This exterior case comprises: a base including an internal space for storing an electronic device; a circuit board disposed on a first surface of the base and including a plurality of light-emitting elements for emitting light; and a weft-and-warp-woven outer cover surrounding the base and the circuit board and transmitting emitted light, wherein at least one among the weft and the warp may be formed of a thermoplastic polyester elastomer (TPEE) coating yarn which uses a transparent TPEE as a core and includes a coating layer made of polyurethane (PU) and surrounding the core.