twenty Superior Midi Dress in Gray. - size S (also in ) twenty Superior Midi Dress in Gray. - size S (also in ) 96% modal 4% spandex. Dry clean only. Unlined. Partial front button placket. Shirred side seams. Jersey knit fabric. TWER-WD65. NV5V 027. Twenty has transformed a fashion essential by giving the classic knit tee a luxurious and modern take. Crafted from amazing fabric, twenty creates super soft tees, knit dresses, bodycon skirts, and cozy sweatpants that will quickly become everyday staples in your wardrobe.