Burberry size L

I bought it from stock x US I'm lightweight, so this size L fits too wide on me, so that's why I want to sell it I bought it a few months ago, I wore it in Paris, a dj show, and to a club, and now I'm keeping it safe, ready to sell it I haven't dried it, so it's in good condition I can't go lower poshmark takes like $60 so I can make $230