Cuban heel

Wiktionary

1. n. A relatively low-style of high heel shoes, characterised by a slightly tapered back and a straight front
2. n. A type of heel used for men's boots similar to the heel on cowboy boots
3. n. Women's sheer stockings or pantyhose with a prominent thin rectangle heel reinforcement at the base of back seam (A thick rectangle heel reinforcement is a Havana Heel)

WordNet 3.0

1. n. a broad heel of medium height on women's shoes