One Grey Day X REVOLVE Cass Cropped Cardigan in Black. - size L (also in M) One Grey Day X REVOLVE Cass Cropped Cardigan in Black. - size L (also in M) 70% acrylic 27% nylon 3% spandex. Front button closure. Crystal accents. Imported. ONEG-WK113. OGDXREV304. Designer Bradley Davidowitz brings us these simple and fun easy to wear pieces.