2-piece set - It's still new in the bag! I bought it for my maternity shoot but shipping came 10 days too late so I no longer need it. I'm about to give birth and don't want to hold onto it in the hopes I have another baby in the future! The return fee and restocking is ridiculous so it is not worth returning to the company. The material is gorgeous and so is the fit! Size Chart Size Top_Length-Short Sleeve（cm） Top_Length-Sleevelss (cm) Bust-Short Sleeve (cm) Bust-Sleeveless (cm) Waist (cm) Hip (cm) Sleeve Length (cm) Bottom_Length（cm） S 25 32 78 80 62-94 94 15 94 M 26 33 82 84 68-98 98 16 95 L 24 34 86 88 72-102 102 17 96 Occasion: Photoshoot Style: Elegant Season: Spring, summer, autumn Decoration: Cut out Material: Dacron Neckline: Boat neck Sleeve length : Sleeveless