This top is very stretchy! It’s beautiful on, IF you’re not built like I seem to be now. It’s marked medium although it looks tiny. It’s very easily worn as a 8-12 size; however, if you’re short-waisted and large hipped, it may not fit well. Fabric is lightly woven. I’ve included photos of it on me since I’ve gained weight and lost height. Obviously I can get it on, but it’s too clingy for my new rolls and wider hips! This is why I suggested that if you are short-waisted and have wide hips, this top is probably not for you. I hate giving it up since it looks great with jeans, dress pants or dressy skirt.