<p>A sliding window is provided with a roof (100) of a vehicle body. The window includes a frame (13) fitted to an opening formed with the roof (100). The frame (13) is made of a hard material that has a linear expansion coefficient substantially equal to that of the vehicle body. A plate (11) that made of a hard resin material is fitted to the frame (13). A molding (12) that is made of a soft material is interposed between the plate (11) and the frame (13). The molding (12) has a flexible portion (120) so as to absorb a deformation of the plate (11) due to changes of temperature. <IMAGE></p>