Exodus 31:10

and the vestments for ministration, the holy vestments of Aharon the priest, and the vestments of his sons for ministry;

AND THE GARMENTS OF ‘HA’SROD.’ I do not know why He did not command the making of these garments at the beginning, as He did concerning all the [rest of the] work of the Tabernacle and the garments of Aaron and his sons, for it would have been proper that He say to Moses, “and thou shalt make cloth of blue-purple to cover with it the ark, and a red-purple cloth to cover with it the altar,, Verse 13. and a cloth of scarlet to cover with it the table,” and now when charging Moses about those who were to make these things, He should have included these garments with the rest of the work. Perhaps there was no insistence on how they were to be made, and they could have made these garments of srod of one kind alone, but they made them of blue-purple, red-purple and scarlet. They did not want to make them of linen, as that is not distinguished, as are those other colors. After they made them, G-d willed that the blue-purple cloth be for the ark, the red-purple for the altar, and the scarlet for the table. Therefore, it was sufficient to command them in brief [here] when He gave the command about those who were to do all the work, for these garments of ‘ha’srod’ were to be made according to their understanding.
Now it is not befitting that a garment made to cover [the sacred vessels] should have many holes in it, as Rashi has said. Rather, the word ha’srod is of the term sarid (a lone survivor), because all these garments were of one kind, as Rabbi Abraham ibn Ezra said.
All this I have written in accordance with the line of thought of Rashi. Yet all this availeth me nothing. For what meaning is there in the Holy One, blessed be He, saying to Moses that they should make “garments of kela,” (hangings) (above 27:9) Onkelos translates s’radin. Similarly he translates the Hebrew word michbar (grate) (ibid., Verse 4) as s’rada. On the basis of these translations of Onkelos, Rashi suggests here that the word ha’srod is an Aramaic term, which means “garments of net-work,” because they were made with many holes. — It is with reference to this basis for Rashi’s explanation that Ramban says, “garments of kela.” or “garments of s’ridah,” without explaining to him how many of them there should be, two or a hundred, how long and wide they should be, and why they should be made altogether, since the matter cannot be understood at all from this communication [stated here]? …

בגדי השרד, hanging protective curtains which would be draped over the furnishings of the Tabernacle, such as the Table, The Ark, and the Menorah, as detailed in Parshat Bamidbar. (Numbers 4,6; 4,13; 4,8) These fabrics had been plaited prior to their serving as protective covers.

ואת בגדי השרד, “and the service garments;” according to Rashi these were not priestly garments, but garments woven alternately of blue wool and red wool, i.e. תכלת וארגמן as described in the portion dealing with the journeys of the Israelites (Numbers 4,7-9). This sounds quite unlikely, as these garments are referred to throughout the Talmud as priestly vestments.