rubber-soled shoe

“From that inspiration, the whole rubber-soled shoe business really developed.”

The boom was fueled by a series of fitness crazes, beginning with “pedestrian fever” in the mid-19th century, when spectators filled New York City’s Madison Square Garden to watch a six-day walking race; followed shortly thereafter by the vogue for croquet, the first sport to necessitate a rubber-soled shoe; “sidewalk surfing,” better known as skateboarding, in the 1960s; jogging in the 1970s; aerobics in the 1980s; and “cross-training” in the 1990s.

Or use a rubber-soled shoe in a light color and “rub that mark out.”

He probably wore a rubber-soled shoe, like a sneaker, and stepped on some broken glass that went right through the sole into his foot.

Here's the whole business in a nutshell: the buttons missing from his blouse, one found in Number Five, the other in your bungalow; Miss Hardesty's having seen him the night of the murder; the ease with which he undoubtedly got the kitchen key from Lucy Thomas; the imprint of his rubber-soled shoe on the porch; the finding of this piece of gold chain; and his failure to establish an alibi.