Thanks Ringo. I copied the boot cover that came with my London Roadster. On both my cars, the top stays fully attached when lowered. The boot cover snaps on to the same points that the side curtains attach to on the sides of the body. There is a section of bungie cord about 30 inches long fitted into the hem of the boot cover approximately over the ”gas tank”. This keeps the cover snug arround the body of the car.