According to Hebrews 11:37, what did some of the faithful wander about wearing?

Answer: Sheepskins and goatskins

Some were stoned or sawed in two; they went around in sheepskins and goatskins, destitute, oppressed and mistreated.

“They were stoned, they were sawed in two, they were put to death by the sword. They went around in sheepskins and goatskins, destitute, oppressed, and mistreated.”— Hebrews 11:37 (BSB)