Vintage size M ? khaki Field and Stream windbreaker jacket

Lightweight packable jacket in a khaki color. I'm not sure of the exact age but I would say it's from the 70s-80s. Jacket is sold as is with some age related imperfections. A missing waist drawstring and some missing stitches in the hem and under arm, faded size and care tags, and some dried out wrist elastic. There is a zippered compartment across the chest that holds elastic bands, which are crunchy. Based on measurements, this would likely fit a modern day M/L but please see all photos. With the sleeve elastic not working, please note the sleeve length.