Who's Who jacket. This is a highly recommended item, perfect for this time of year♪ The silhouette is also cool. Recommended for fashion lovers♪ The back has side vents. It's in good condition, but it's a used item, so please purchase only if you understand. Size is L. *It is also listed on other sites and is first-come, first-served, so it may be sold out. Thank you for your understanding.