Fabric properties (thickness, stiffness)

Use fabric thickness and stiffness to control how clothing folds, hangs, and sits against the figure.

What it is

Fabric properties describe how thick and how stiff or flexible cloth is. They affect edge behavior, fold size, and how closely clothing follows the body.

Thickness appears in the bulk of seams, hems, and overlaps. Stiffness affects how sharply fabric bends and whether it holds its shape or curves around the body. A stiff fabric forms broad bends and flatter planes, while thin, soft fabric clings, twists, and forms smaller folds.

Apply these properties to the garment's fold patterns. Wool suiting may create a few long tension folds, while light cotton may add smaller ripples. Cuffs, collars, waistbands, and gathered areas show thickness and stiffness through their projection, edge sharpness, and fold structure.

Why it matters

Thickness and stiffness help distinguish fabrics and show how clothing supports the figure. Weak control can make jeans, coats, and skirts behave alike, reducing the sense of material, weight, and movement.

You can check it when

• ✓Describe a clothing reference's thickness and stiffness, then identify edges, folds, and overlaps that support your assessment.
• ✓Redraw the same pose in 2 different fabrics, such as denim and silk. Keep the figure and pose consistent while changing the fold behavior.
• ✓Check whether seams, hems, collars, and cuffs show appropriate bulk. Thick fabrics should sit farther from the body, while thin fabrics should lie close and add little bulk.
• ✓Review invented outfits and compare their fold size, edge sharpness, and distance from the body with the stated fabric properties.

Related skills

• The seven fold types (pipe, zigzag, spiral, half-lock, diaper, drop, inert)
• Fold physics (tension points, compression points, gravity acting on cloth)
• Clothing design over anatomy — behaving correctly during movement
• Fabrics and leather (cloth, satin/silk, denim, leather)
• Construction, layering, and material choices
• Texture versus material