People consider flight jackets and aviator jackets as identical, but there are minor differences between the two. A flight jacket refers to any style of leather jacket that has its roots in the aviation industry. It is commonly made of sheepskin leather or a water-resistant fabric like Parachute. On the other hand, an Aviator Jacket is also a type of flight jacket but has a particular design, and past history. Developed during World War II, it has a standup (raised and sturdy) type of collar, cuffs with tightened grip, and a tightened (insolated) waistband.