I read other reviews, so I felt like I made the right decision on size. I am 5'6" 140 pounds and have a 35" chest, 29" waist, and 42" hips/butt so I order a US M / Asian L. The tag in both dresses indicates the Asian size. I ordered two different patterns and they both fit perfect. The fabric is very lightweight. There is not a fabric content tag, but it's either polyester or nylon. You will most definitely need to plan to wear a slip (especially with the lighter patterns which are quite sheer). Colors and patterns are true to pictures posted. I ordered on March 13th and package arrive on April 11th, also as expected.