A roof rack mounted on a roof panel of a vehicle includes a main body including a rail that extends along a lengthwise direction and forms the main body and support parts provided on opposite longitudinal end portions of the rail in the lengthwise direction, a hollow profile that extends along the lengthwise direction of the rail and that is integrally formed inside the rail, caps mounted on opposite distal ends of the hollow profile and disposed inside the main body, and a pair of covers mounted on opposite side surfaces of each of the support parts.