Hello all,
My "winter" DIY project will be an X-Kilt, but first I am working on a vest that can be worn with my kilt. It's tough to see examples online because they only show the front of the vest. I am not sure what material should be used for the back.

When it comes to a waistcoat, I would surely use silk or polyester. But for a simple vest, similar perhaps to an Argyll vest, can the back be the same wool as the front?

This is an on-my-way project. I don't really know how to sew so I am taking on progressively more difficult projects before attempting an X-Kilt.