Fit & patternmaking

The vertical distance from the waist to the seat while seated, used in trouser drafting to position the crotch line and set the rise of the pattern.

The distance from the waistband to the crotch seam of a garment or body, measured front and back, determining how high or low trousers sit on the body.

The angle of the shoulder measured from a horizontal reference line, used to identify square or sloping shoulders and to adjust the shoulder seam of a pattern.