In old times when cowboys were a thing people who lived more to the north, who had to go thru a cold winter, had to also dress themselves properly. This is a special kind of clothing. Not as its use but more of the owner of this clothing. Who wore these clothes were part of an team of outlaws who were specialized to do their robberies and all other things in the winter when others were struggling. The branch on the clothes was the symbol that made it easy to distinguish the team of outlaws.