Fabric cut at a 45-degree angle to the lengthwise and crosswise grain is referred to as “on the bias.” Preparing strips of fabric in this manner for use as binding allows for greater stretch and flexibility, which is particularly useful when finishing curved edges or creating a smooth, non-bulky seam. An example of its application is seen in garment construction, where bias binding ensures a neckline or armhole lies flat against the body, avoiding puckering or distortion.
Utilizing bias-cut strips for binding offers several advantages. The inherent stretch conforms readily to complex shapes, resulting in a more professional and durable finish. Historically, this technique has been favored in couture and high-end tailoring for its superior drape and resilience. It also minimizes fraying, contributing to the longevity of the finished piece.
