Babaton The Slouch Coat Size 3 (L/XL)

Purchased secondhand locally a few weeks ago, but it is too big for me. I'm normally a size M/L and 5'3", so I'd say this is more of an XL or a taller L. I believe it is the virgin wool and cashmere version in the color Nomad Taupe. Retails for $450. https://www.aritzia.com/en/product/the-slouch%E2%84%A2-coat/104725.html?dwvar_104725_color=30654