Bias seams are found in hundreds of styles, from V-neck and asymetrical tops to A-line and flared skirts & dresses to jacket lapels and more. Achieving a smooth, pucker-free bias seam is To join two bias edges, such as the side seam of a bias-cut skirt, hold the fabric in front and in back of the presser foot and stretch gently as you stitch. Although this allows the seam to "give" as you stitch, it will relax into a smooth seam when you are finished.