Clothes and hair can reflect the attitude of the heart.
Because God speaks on the issue of hair in
1 Corinthians 11; and on the issue of clothing in
1 Timothy 2:9-10 and
1 Peter 3:3-4.
It is therefore a matter of obedience; if Jesus is truly your Lord, you will obey Him on every issue.
Luke 16:10 applies. If you are faithful in that which is least, you will be faithful in that which is greater. And if you are unjust in that which is least, you will be unfaithful in that which is greater. On the other hand, the scribes and Pharisees strained out a gnat and swallowed a camel. They were meticulously obedient when it came to the tithing of their herbs; but when it came to the weightier matters of the law (justice, and mercy, and faith) they were severely lacking. However, Jesus said that these they should have done without leaving the other things undone (in other words, they should still not neglect to do that which is least; in that case tithing).
Now I have seen women who came to the Lord and all the clothing they had was skimpy. But there was something holy about them. And I believe that the Lord sanctified them later as they realized that the clothing they wore could be a stumbling block to their brother. And I know women who are yet unaware of what it says in
1 Corinthians 11 about hair; who continue to have short hair. I don't hassle with them. Sanctification is a process for many. I believe and know that if or when they come across the scripture that addresses the issue, they will be obedient to that scripture if they love the Lord. Or, really, their husbands. Because the
1 Corinthians 11 passage teaches that if they continue to wear their hair short, they are dishonouring their husbands (not necessarily the Lord). But if a man wears his hair long, he is dishonouring the Lord according to the passage; and it is also a shame to him.