I don’t see a tag or hidden size on the actual jacket but trying it on I can say it’s a Size XXS or a very tight XS. For ref I am 5’7 and 125 lbs and wear a S normally and it fits uncomfortably tight I can’t even zip it up all the way. Gently used condition, no signs of wear expect the tiny zipper showing bit of scratching on the inside of the zipper (last pic) where it’s not visible to anyone, zippers fully functional, very dark heather gray color (sold out color), very smooth material and well taken care of. Smoke free home. Priced to match condition of item, price is firm. Thank you!