Italian made dusty green/ grey jacket

My gf got this in Italy and then gave it to me . It says size large ( see tag pic ) but I’m a small and I liked the fit . I think between the stretchy material and the adjustable side buckles ( there are multiple ) it’s a look that can be used by different sizes . I was too lazy to take time to adjust the buckles so they look disorderly . They all work and can be adjusted tighter or larger . One zipper is missing from sleeve as pictured . I wore it with sleeves rolled up . Ask any questions!