According to the bible, women must dress modestly and decently, without any glamour:
[1 Timothy 2] “I also want women to dress modestly, with decency and propriety, not with braided hair or gold or pearls or expensive clothes.”
And a shameless women is considered nothing more than a …
[Eccles.26:25] “A shameless woman shall be counted as a dog; but she that is shamefaced will fear the Lord.”
In Islaam, Allaah, The Most High, has laid down the concept of hijaab. Hijaab is not, as people assume, a cloth one uses to cover ones hair. Hijaab is a complete code of living. There is hijaab of the clothes, hijaab of the way one acts, hijaab of the way one conducts oneself in public, hijaab of ones voice, hijaab of ones character etc. The Hijaab is adopted to minimise the women’s beautiful attraction, hence lessening the chances of her being molested.
As for the hijaab of the clothes, it is mainly made up of six criterias. If ones clothing fulfils these 6 criterias, then one can say she has adopted the hijaab of the clothing. The six points of hijaab of the clothing are:
(1) The clothes must cover the entire body, some scholars have excluded the face and hands.
(2) The clothes must not be see-through.
(3) The clothes must not be so tight that it reveals the figure. I.e, so the shape of ones body is known.
(4) The clothes must not be so glamorous that they attract the opposite sex.
(5) The clothes must not resemble that of the non-Muslims. I.e, wearing a cross for example.
(6) The clothes must not resemble that of the opposite sex. I.e, wearing of trousers/shirt by women.
The concept of the covering the head has also been addressed in the bible:
[1 Corinthians 11:5-7] “But any woman who prays or prophesies with her head unveiled brings shame upon her head, for it is one and the same thing as if she had had her head shaved. For if a woman does not have her head veiled, she may as well have her hair cut off. But if it is shameful for a woman to have her hair cut off or her head shaved, then she should wear a veil.”