Fabric has some wash wear/fading but I think this might be original, as the jacket has a distressed look to it.  Button is attached, but thread is loose.  Please see photos for details.  

Approximate measurements: chest 44", waist 39", sleeves 27" from shoulder seam, length 29.5", shoulder to shoulder 18.5"

Fabric is a knit cotton, similar to sweatshirt material.  Distressing at collar, pockets, and ends of sleeves gives the jacket a vintage look.