AS APY said, the problem was because the women were making themselves up for immorality. See the passage form the Gemara.
Shabbat 62a, Soncino Translation:
[mesakrothh] eyes:28 they filled their eyes with stibium and beckoned.29
Walking and mincing: they walked, a tall woman by the side of a short one. And making a tinkling [te’akasnah] with their feet: R. Isaac of the School of R. Ammi said: This teaches that they placed myrrh and balsam in their shoes and walked through the market-places of Jerusalem , and on coming near to the young men of Israel, they kicked their feet and spurted it on them, thus instilling them with passionate desire like with serpent’s poison.30
[bosem] there shall be rottenness:31 the place where they perfumed themselves [mithbasmoth] shall be decaying sores. And instead of a girdle a rope [nikpeh]: the place where they were girded with a girdle shall become full of bruises [nekafim]. And instead of well-set hair baldness: the place where they adorned themselves shall be filled with bald patches.
(24) Isa. III, 16.
(26) Ibid.
(27) I.e., with short mincing steps. One who walks with outstretched neck must take short steps, because he cannot see
his feet (Rashi).
(28) Ibid.
(29) To the men.