Black express single breasted suit jacket, size 12. I would say that this jacket fits more like a size 10 than a size 12. It is definitely more of a slim fit tuxedo style jacket with super cute polkadot lining throughout the body and striped lining when you roll up the cuff. I have worn this suit jacket maybe two times and it is in excellent condition! This would be a great jacket to wear to work or for the holidays. Please let me know if you have any questions!