Goodnight Macarroon: 'Millie' Neck Backless Halterneck Dress (5 Colors) Sizing category: Regular Style: Casual Length: Midi Material composition: 100% polyester fiber Imported Product measurements: XS - Bust 86cm, Waist 66cm, Length 133cm S - Bust 90cm, Waist 70cm, Length 134cm M - Bust 94cm, Waist 74cm, Length 135cm L - Bust 98cm, Waist 78cm, Length 136cm Machine cold and gentle cycle or hand wash cold Lay flat to dry Do not tumble dry Do not iron If you are unsure or need assistance selecting the proper size or color, please contact our Customer Services team and they'll be more than happy to help.