Designed by Laurastar's Swiss engineers, the protective soleplate protects your delicate fabrics and prevents the appearance of shiny patches on dark fabrics. It also allows you to iron over delicate fabrics, such as silk, which are heat sensitive. This is thanks to its special coating which reduces heat. The protective soleplate is easily attached to Laurastar Smart U irons. Start by placing the point of the iron at the front of the protective soleplate, then lower the iron to fix it into the soleplate using the rear tab. Wait around 2 minutes for the soleplate to reach the right temperature for a gentle ironing experience.