This is not a critical subject, for our appearance is a matter of conscience before the Lord, and of course we should not want to stumble others. Here is a letter that appeared in print, I think addresses this matter well.
A LETTER REGARDING APPEARANCE
[This letter is shared here to set forth some considerations for all to honor the Lord]
Dear sister in the Lord:
In regard to your questions, I believe the good appearance of the saints is a testimony to all and pleasing to God. It sets them apart from the world with its styles, fads, and vanity; and it should show us in simplicity, humility, and Godliness. This applies also to painting the face, the nails, piercing the skin, etc; and includes all manner of clothes that reveal the body. God hates vanity and carnality, and loves a Godly heart (Job 40:10; Matt.22:11-12; Eph.4:17-24; 1 Th.2:12; 1 Tim.2:9-10). Appearances often reflect what is in the heart, and our attire might show indifference to our holy calling and attract attention to ourselves. Careless dress of men or women is dishonoring to the Lord, I believe ---mainly it is conformity to the world.
We have dress clothes and work clothes. A saint who would attend a wedding, funeral, or come before a dignitary in proper attire, surely should not come to the table of the Lord in less suitable apparel. Old, worn, and faded clothes, tight clothes, or clothes with worldly pictures and advertisements, should only be expected on those who can afford nothing else. Is a wedding more worthy of our good appearance than the assembly meetings with the Lord "in the midst"? A priest ought to be mindful of his garments.
Regarding your question about dresses, I will say: women should not wear that which pertains to a man (Deut.22:5). God says that for a woman to wear clothing like unto the man is an "abomination"; that is, most offensive to God who created them separate. While that was spoken to saints of old, it is a universal principle, because God made men and women separate with separate stations and roles in life. The woman's appearance should be as a woman and they should be pleased with their calling.
Dresses on women show humility and reverence to God in the church (assembly), but some feel they can wear pants at home in their daily routines. The home life is mostly a matter of conscience, but the gathering of saints is on the ground of holiness as a collective testimony, which concerns all. We do not legalize it, but we need to seek to do that which pleases and honors God, and not challenge Him.
There is a growing rebellion over appearances in the western world today, as men and women assert themselves. Men are being careless and even defiant, and women have begun to imitate men and challenge them. Women certainly should be equally treated and blessed, but they have a distinct role, which they should value. Rebellion to God's calling will bring down ruin in our lives, and surely loss of reward in a day to come for true saints of God. I will send along a paper I have on THE WOMAN'S CALLING to show their special privileges.
Sincerely in Christ, (RLD)