Abstract: A roller blind can be provided for a roof system of a vehicle. A shade (e.g., cloth) of the roller blind can be retracted into a coil with bow springs fully extended in a straight configuration at their maximum width. When deployed, the ends of the bow springs are urged towards each other to form a narrower width and a curved shape. This allows the shade to conform to the curved shape of the overlying roof system (e.g., glass) and provide more headroom within the cabin.