VfEmage Women's Elegant Vintage Faux Twinset Polka Dot Wear to Work Sheath Dress Our size is one size smaller than that of the US local brands like "Nordstrom". To prevent the size issue, please refer to our detail size information (bust/waist/hip size) below the product description before order. Thanks! Material: (Dress material) 75%Cotton+20%Nylon+5%Spandex; (collar and cuff material )95%Polyester+5%Spandex Garment Care:Machine Washable