Which type of fabric is often avoided for lining due to its lack of stiffness?

Silk is often avoided for lining because it is a lightweight, soft fabric that lacks the stiffness required to provide structure and support to the garment. When used as a lining, silk might result in a garment that does not hold its shape well, making it unsuitable for items that require more defined structures, such as tailored jackets or structured dresses. The fluidity of silk can cause the outer fabric to sag or shift, undermining the overall design of the piece.

In contrast, fabrics like canvas and denim are much sturdier and are typically used in applications where a more durable, rigid lining is beneficial. Buffalo check is a specific pattern rather than a fabric type and does not inherently suggest stiffness or structure. As such, all these options indicate types of fabric or patterns that have more stability compared to silk, which is why silk is the one most often avoided for lining purposes.