What is Bias cut ?  

Bias cut means to ‘be cut on the grain’. Rather than following the straight line of the weave, the bias cut places the pattern at a 45° angle on the woven fabric. At this angle, the ‘warp’ and ‘weft’ threads give the fabric more of an elastic ‘stretch.’ The bias cut is popular for accentuating body-lines and creating more fluid curves or soft drapes. It was championed in the 1920s by Madeleine Vionnet and later became one of John Galliano’s signature style.