Modesty is very important.
Modesty definition is found in the dictionary & there's a verse in the KJV bible on it.
I believe this is personal. Some women can get away with more clevage, some can't show any clevage. It may depend on how a body looks.
A woman needs discernment on if she looks too provocative or tempting or not. When in doubt about my outfit, I ask God in prayer. Some days it matters more than other days. Depending on who the others are I'll be around.
Sometimes I can sun bathe in a bikini. Other days, I can't. Probably becausee of who may be in the neighborhood.
There is one scripture on modesty...
1Timothy2:8,9 'I will' therefore that men pray every where, lifting up holy hands, without wrath & doubting. In like manner also, that women adorn themselves in modest apparel, with shamefacedness & sobriety; not with broided hair or gold or pearls or costly array; But (that becometh women professing godliness) with good works.
In the beginning of the book, Paul;l wrote... And Paul is saying that he wills this...Ti2:8.
Paul is saying that man should praise God in Church lifting holding hands like women should dress modestly. Mostly this modesty is discerned from God. And God looks at the heart & not so much all our expensive hair dos or expensive clothes or jewlery. But it isn't a sin to wear our jewelry, etc. As long as a person doesn't have personal conviction in this area.
Also, that women shouldn't be dressed to take the mans attention off God. Men should be worshipping God & not looking at the women.
Mandoos, It doesn't say that I have to cover my hair or shave it off. This verse is referring to culture. Because hair was the womans glory. So? Later it is written that if this isn't the culture, then there isn't this law. This is a land law for that area at that time.