Viwenni Classy Neck Sleeveless Elegant Work to Wear Office Midi Party Dress Polyester Spandex.the item will send out with Tracking number.Please do not use bleach soak After cleaning, please adjust the shape of clothes , and then drying Avoid sun exposure to avoid discoloration of clothes Size is the manual measurement , because of the different measurement methods for each person , there may be errors 1-2cm