Size 2 US (UK size 6). Surprisingly stretchy and very comfortable but I don’t wear it at all. Original description: Part dress, part cardigan, all need - Red textured knit longline cardigan dress - Slim-fit bodice flows into a midi-length A-line skirt - V-neckline & long flared sleeves - Functional button up front can be fastened to your liking - Burgundy red textured jersey knit is soft & comfortably stretchy - Up the drama, wear a longline cardi 51% viscose, 30% polyester, 19% nylon