Boys Like New North Face 600 WARM! black puffer vest

Boys Like New North Face 600 black puffer vest There is a small stain (I think stain) that is black shiny inside the vest. It's small and packs make it seem bigger than it is. It isn't seen or noticeable since it's on the inside and the color of the vest. Otherwise it's like new. He might have worn it once for like an hour! Runs big. I'm a women's small and it fits me but it is a boys large and they can wear it for a long time! It has cinching to make it tighter at the bottom if needed