Sherpa moto jacket

Soft mauve-ish/pink women’s Sherpa moto style jacket. Super soft and warm, brand new with tags, had my niece try on to take pics. Pics show someone who wears size extra small, modeling this jacket, which is a small. I’m a medium and purchased hoping I’d make it fit, it’s just a little too snug in shoulder and arm area, but I’m unable to return.