TLH Women's Plus Size Pure Color Maxi Dress Short Sleeves High Waist The optional sizes are Asian sizes.Asian size is two sizes smaller than US or UK size,so you'd better buy 2 sizes up. The best way is viewing these detailed size data and choose your right size: XL:Length=55.11in,Breast=40.15in,Waist=29.52in 2XL:Length=55.11in,Breast=44.09in,Waist=35.43in 3XL:Length=55.11in,Breast=48.81in,Waist=37.40in 4XL:Length=55.11in,Breast=52.75in,Waist=39.37in 5XL:Length=55.11in,Breast=56.69in,Waist=41.73in 6XL:Length=55.11in,Breast=60.62in,Waist=45.27in Fabric:ice silk(100% polyester) Deep V-neck collar design,small exposed sexy Ice silk fabrics drape super good,fine workmanship,more stylish