With such purposeful history, each component of the jacket can also be interesting. The bomber jacket is smart. Remember that this was first designed based on functionality. Each component of the original design played an important functional role. The orange material inside is of crucial importance. The main purpose of this design was so that it could be inside out should fliers crash and needs rescue. This allows them visibility during rescue missions. This aspect of the bomber jacket does not apply to most styles we see today. But for those designs that do, you can say that this part of the design served its utilitarian purpose. This design served the military men well.