Selvage

The way a fabric falls, folds and moves under its own weight, ranging from fluid, as in chiffon and jersey, to stiff, as in canvas and taffeta; a key factor in pattern choice.

The diagonal direction across a woven fabric, at 45 degrees to the grainlines, along which fabric has maximum stretch and drape; used for bindings and fluid-cut garments.

A fabric's mass per unit area, commonly measured in grams per square metre, used to judge suitability for a garment and to match pattern recommendations.

The direction of the warp and weft yarns in woven fabric, or the wales and courses in knit fabric, which pattern pieces are aligned to for correct hang and stretch.

Garment or product design approach that uses a single fibre type throughout fabric, thread, and trims so the finished item can be more easily recycled.