Yellow and black when nothing else matters in classic dortmund style pull on this puma borussia dortmund 1718 home short sleeve football shirt in cyber yellowthis replica football shirt of german bundesliga side borussia dortmund sees the design change from the 1617 season to a hoop design made from 100 polyester this shirt also features pumas drycell technology which ensures moisture is wicked away from the wearers skin to help keep the wearer cool and dry both the puma and dortmund