Vintage denim Sherpa lined western snap vest workwear ranch handmade unisex EUC

This western 70s / 80s Sherpa fleece shearling lined snap button denim vest is an amazing find. There are no size or fabric or brand tags, and it seems handmade to me. Excellent condition. Pit to pit = 19.75” Overall length: 26” Would best fit a men’s small or women’s medium