Cheer on the sharks as they try and defend their premier title with this x blades cronulla sharks nrl 2017 alternate short sleeve rugby shirt inblack and bluethe official 2017 home jersey of nrl side cronulla sharks comes in the change colours of black but still maintaining the traditional colour of the sharks in sky blue this rugby league shirt comes made from 100 polyester and has a round neck collar designed to add comfort sponsor logos have been sublimated into the jersey but the nrl b