The sizing system for women are based on the following measurement for lower garment:
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In commercial retail (sizes 4, 6, 8, etc.), lower garments are graded and categorized primarily by the hip measurement, as it is the most rigid and wide point of the lower torso.
Step 1: Understanding Control Dimensions in Sizing Systems:
Commercial apparel sizing systems rely on “control dimensions”—primary body measurements that dictate whether a garment can be put on and worn comfortably. Step 2: Analyzing Lower Body Fitting Requirements:
For skirts, fitted pants, and jeans:
The hip girth is the widest part of the lower female torso and is supported by a rigid, bony skeletal structure (the pelvis). If a pair of trousers or a skirt is too narrow at the hip girth, the garment cannot be pulled up over the hips.
The waist is located at a softer, more flexible area of the body. It is easier to adjust on a garment through the use of darts, elastic bands, or belts.
Step 3: Industry Standard:
Thus, industrial sizing systems use hip girth as the primary control dimension for women's lower garments.