There's nothing unscriptural about vestments. God commanded that they be used in the Old Testament. Look at Exodus 28:2:
For your brother Aaron you will make sacred vestments to give dignity and magnificence. You will instruct all the skilled men, whom I have endowed with skill, to make Aaron's vestments for his consecration to my priesthood. These are the vestments which they must make: a pectoral, an ephod, a robe, an embroidered tunic, a turban, and a belt. They must make sacred vestments for your brother Aaron and his sons, for them to be priests in my service. They will use gold and violet material, red-purple and crimson, and finely woven linen.
Nothing in the New Testament requires abolition of priestly vestments. Our Lord attacked the Jewish leaders for a number of sins, but he never condemned their priestly garb. It's true the early Church didn't use the Old Testament vestments, but this is because Christians didn't want to identify their leaders with the Jewish priesthood.
Priestly vestments are no more than stylized secular Roman garments which have accrued symbolic, liturgical significance over the centuries.
God commanded Jewish garments for the priests He commanded to exist in Aaron’s line. There is no NT office of priest, since every single believer is a priest.
As such, there is nothing biblical about this in a purported Christian church
Catholic costumes are of pagan origin, as history records.