The TITLE WBC Professional Boxing Trunks are built from a lightweight poly-satin blend that is flexible enough for you to get around the ring and breathable enough to get you through your rounds. The Boxing Trunks are traditionally designed to be 22.5 long with a 4 WBC Green waistband and 4 side slits to make sure that you have total, uninhibited movement. Officially licensed and approved by the World Boxing Council.