The only thing necessary is a flashlight and, in the case mentioned above, possibly a rain coat.

Mason turned, nodded to the butler and picked up his rain coat.

"Any better description of that woman than that she wore a white rain coat?"

He was about half a block away from me when some woman wearing a yellow rain coat made like mine ran out toward the car.

The light yellow rain coat showed up as a light patch.

That is, I think it was a white rain coat.

"Yes," he said, "it might have been a light yellow rain coat."

Casca settled himself into the seat, huddled in his rain coat.

He bent over, but his rain coat got in the way.

He slowly put on his tan rain coat and looked right into Alex's eyes.