NWOT Sportalm Austrian made jacket

In love with this jacket but sadly it’s too small! Purchased in Austria but never worn. It’s a metallic forest green with so many cool details! “A walk on the Course” embroidered down one sleeve . It’s a lightweight jacket with mesh interior. Love Love love ! The size says it’s a 42 - I wear a small/ medium and to me this seems like a xs/small. Armpit to armpit 20 inches Length 23 inches