Dec 18, 2012 Caring for your training gear We all want our training gear to not only last as long as possible but also look its best. As per Koral's washing instructions kimonos should be washed each time after use in cold or warm water and hung out to dry. Salt derived from sweat can erode stitching when the garment is not washed regularly. The short sleeve white body rash guard should not be washed with other colours as colours from other other garments can run into the white. It is recommended to wash the rash guard separately in cold water and then hung out to dry.