The Quran tells Islamic women that they should lower their

lower their gaze

Explanation:

The Qur'an is the holy book of Islam. Muslims express that in this book are the revelations given to Muhammad by the archangel Gabriel about the word of God.

The Qur'an invites men and women to be modest and to cover themselves. It does not specify how far they should be covered, but they should show as little as possible. It also expresses that women should only show their beauty to their family.