Protects Delicate Fabrics: It allows you to iron heat-sensitive materials like silk, nylon, polyester, and synthetics at the high temperatures sometimes required for maximum crease removal, without directly exposing them to the harsh heat of the metal soleplate.
Prevents Scorching/Burns: By distributing the heat more evenly and reducing the direct contact temperature, it significantly reduces the risk of scorching (yellowing) or burning delicate or dark-colored fabrics.
Eliminates Shine/Press Marks: When ironing dark fabrics or certain synthetics (like suit pants), the bare soleplate can sometimes leave a shiny patch or press mark. The perforated cover prevents this by diffusing the pressure and heat.
Prevents Sticking: It helps prevent melted synthetic fabrics or fusible materials from sticking directly to the metal soleplate of the iron.