If the costume needs to be cleaned in a washing machine, we recommend taking out the hoop wire so it doesn't get damaged in the washing machine.If the hoop wire was dyed, rub a wet cloth on the hoop wire to make sure no excess dye is on the surface.  The costume can be hand washed with the hoop wire in it. If the costume needs to be dry cleaned, we recommend taking out the hoop wire so it doesn't get damaged in the dry cleaning equipment and chemicals.  However, check with your dry cleaning company for their recommendation as dry cleaning chemicals vary depending upon location.This information is only applicable to hoop wire manufactured by HoopWire.com.