1. Grain: For woven textiles, grain refers to the orientation of the weft and warp threads. The three named grains are straight grain, cross grain, and the bias grain. Non-woven materials such as felt, interfacing or leather do not have a grain. a. straight grain: The straight grain is oriented parallel with the warp threads and the selvedge. The straight grain typically has less stretch than the crossgrain since the warp threads will […]