Yellow and black when nothing else matters in classic dortmund style pull on this puma borussia dortmund 1718 home players authentic football shirt in cyber yellowthis authentic 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 as well as actv the integrated athletic tape within the shirt provides a micro massage in anatomically strategic posi