At the Rapture we will be dressed in “white robes” washed and made white in the blood of the Lamb. What do these robes declare?
We are all the same in God’s sight. All washed in the blood of the lamb.
The thief on the cross, who did no good deeds after accepting Jesus, is dressed the same as Saint Paul, who spent years of his life demonstrating the transformation he had experienced due to meeting Jesus. Zacchaeus, who extorted money from people under the guise of collecting taxes, is dressed the same as Joseph, for whom no sin is recorded in the Bible.
I belong to this crowd. I may not have been a Billy Graham, but I am dressed the same as he is. I may not have been a Mother Teresa, but I am dressed the same as she is. My white robe says I belong to this choir. My uniform says I belong to this army.
We who have washed our robes and made them white in the blood of the Lamb are all viewed as righteous in the sight of our God, who is holy, holy, holy. No wonder the first word out of our mouths after the rapture is “Salvation!”
For the wedding feast of the Lamb we will not be wearing the same thing we wore at the rapture (which will by then be past tense). For the wedding feast we will be dressed in “fine linen, bright and clean.” 
Let’s look at what the Bible says about fine linen.
By the way, “fine linen” in the original languages of the Bible is not a noun preceded by an adjective. Fine linen is one word both in the Old Testament and in the New.
Joseph was the first person in the Bible to be dressed in fine linen. He was dressed in fine linen when he was promoted by Pharaoh to second-in-command over Egypt. At the same time he received a signet ring for his finger and a gold chain for his neck. Ancient pictures in Egypt do not depict Pharaoh or Joseph wearing robes. They were dressed in the style of their day.
Does this suggest anything to you? We, too, will wear fine linen (and probably fine jewellery) when we are promoted to full recognition as the Bride of Christ at the wedding feast of the Lamb. And we will probably be attired in styles we preferred in our lifetimes.
The next person to be dressed in fine linen was Aaron, the high priest. To read in Leviticus 16 about what Aaron wore for the Day of Atonement, you would think his clothing was quite plain. “He is to put on the sacred linen tunic, with linen undergarments next to his body; he is to tie the linen sash around him and put on the linen turban. These are the sacred garments.” 
But Aaron’s attire was far from plain and drab.
Look at Exodus chapter 28.
“These are the garments they are to make: a breastpiece, an ephod, a robe, a woven tunic, a turban and a sash.” For the making of these garments the Lord said, “Have them use gold, and blue, purple and scarlet yarn, and fine linen.” 
The ephod, made of “finely twisted linen,” was very colourful—containing gold, blue, purple and scarlet. Its skilfully woven waistband contained the same colors and materials.
The breastpiece, like the ephod, was made of gold, blue, purple and scarlet, and finely twisted linen. It was studded with precious stones and fastened with “braided chains of pure gold.”
The robe was even more spectacular. It was blue in color. Dangling from its hem were pomegranates of blue, purple and scarlet yarn with gold bells between them. “The sound of bells will be heard when he enters the Holy Place before the Lord and when he comes out.”
The tunic and turban were also woven of fine linen, and the sash was the work of an embroiderer.
Fine linen for Aaron’s garments was colourful and embellished with embroidery, precious stones and gold. Colors are mentioned first; fine linen last. The emphasis is on color and sound. The first impression is a spectacle. The Tabernacle and the priesthood were only a “shadow of what is in heaven.”
Will the Bride of Christ be dressed in any less splendour? I suspect each of us at the wedding will be dressed in fine linen personalized for us in design and embroidery details.
We will not, as a friend of mine feared, wear formless white robes for all eternity. I believe the white robes and fine linen outfits are for anniversaries and special occasions.
Our God loves color and variety. Look around you at the variety in His creation. Look at the variety of skin colors of people from every tribe and nation. Do you think this multitude comprised of every skin color on the planet will be dressed in monochrome forever? Absolutely not!
Our God clothes the lilies of the field in more splendour than Solomon. Will our wardrobe in heaven be any less colourful or varied? I don’t think so!
 Rev. 7:9, 13-14
 Rev. 7:10
 Rev. 19:7-8
 Hebrew, shesh or sheshi. Greek, bussinos.
 Gen. 41:42
 Lev. 16:4
 Exodus 28:4
 Exodus 28:5
 Exodus 28:6-8
 Exodus 28:31-35
 Exodus 28:39
 Hebrews 8:5
 Matt. 7:28-30