What grain line in woven fabric provides the most stretch?

The most stretch in woven fabric is found in the bias grain line. The bias is diagonal to the lengthwise and crosswise grains, typically at a 45-degree angle. This positioning allows the fibers within the fabric to shift and move more freely, resulting in greater elasticity and stretch. This quality is particularly useful in garment construction to create forms that hug the body and provide comfort, as it can accommodate movement and improve fit. Understanding the characteristics of the bias grain is crucial in sewing and pattern making, as it can greatly influence the drape and overall look of the finished product.

The lengthwise grain is typically the strongest and least stretchy, while the crosswise grain has some give but significantly less than the bias. Thus, recognizing the unique properties of the bias grain helps in choosing the right fabric direction for various sewing projects.