This is a set, but the top and bottom can be worn separately, allowing for various outfits! The neckline, waist, and sleeves are all elastic, making it easy to wear. Because the neckline is elastic, it can also be worn off-the-shoulder. This is a size S, but I usually wear a size M. If you would like to know the detailed measurements, please contact me in the comments. Immediate purchase and price reduction are OK. If you would like a price reduction, please provide your desired price. Even during price negotiations, the person who purchases first will be given priority. I cannot hold items or create exclusive listings. Wrinkles may occur during packaging. I do not have any pets, and I do not smoke. Please also check my profile.