This fabric is a blend of cotton and rayon. It's the same fabric as the long shirt. It was sewn using the felled seam technique, which gives a clean finish to the neckline and armholes. Since it's thin as a single layer, I used leftover shirt fabric for the lining. The front and back lengths are different, but the finish is sturdy. Perfect for this season, perhaps? There are slits for easy wear. The hem of the back panel is curved.