Exodus 39:27-29

27The workers made long shirts for Aaron and his sons, the priests. They used good linen to make cloth for the shirts.

28They also used good linen to make Aaron's special hat, as well as hats for the other priests. They used special soft linen to make the trousers that they wore next to their skin.

29A worker used special skills to make the long belt, so that it looked beautiful. He used blue, purple and red materials to make it, as the Lord had commanded Moses.