This is a vintage G-1 Flight Jacket, it is in good condition with general wear as shown and a flawed zipper. The zipper would work perfectly if it were not for the rip in the fabric as shown in photos. I professional tailor could likely repair the zipper to normal working condition. It is difficult to make out the exact size, but it appears to fit best as an adult small/medium Measurements below:
pit to pit: 20"
length: 26"