First Bias Cut Dress (the dress that almost made me stop sewing) : r sewing Viscose Silk Evening Dress: Green Atonement Style, Open Back with Train Atonement Emerald Silk Dress Community Thrift and Vintage Anyone else still thinking about Keira Knightley's backless green dress from Atonement, 13 years later? At the link in bio, our style editor examines why the backless trend became an unlikely