Musacchio wore thin-soled shoes when she was a sprinter in high school without injury.

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Rubber-soled shoes will skid on grass, but on most other surfaces they tend to develop too much friction.

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Lawyers for Louboutin have argued that sales of any red-soled shoes by any other company constitutes trademark infringement.

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Part of the reason, according to Miss Smith, is that on many surfaces rubber-soled shoes would be no use.

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He was a short and solid old man in a black peasant's smock and gray iron-stiff trousers and he wore rope-soled shoes.

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With him was another man, also in a black peasant's smock and the dark gray trousers that were almost a uniform in that province, wearing rope-soled shoes and with a carbine slung over his back.

NPR: Robert Jordan, Hemingway's Bipartisan Hero

The young man, who was tall and thin, with sun-streaked fair hair, and a wind- and sun-burned face, who wore the sun-faded flannel shirt, a pair of peasant's trousers and rope-soled shoes, leaned over, put his arm through one of the leather pack straps and swung the heavy pack up onto his shoulders.

NPR: Robert Jordan, Hemingway's Bipartisan Hero