Julie Ertz Stripes Youth T-Shirt. Your favorite player who wears the four stars and stripes. This shirt is an official licensed product of the U.S. Women's National Team Players Association. NOTE: Tee is 100% cotton as listed unless one of the following colors. Dark gray tees ar e 50/50 cotton/polyester. Gray tees are 90/10 cotton/poly. All color heather tees are 60/40 cotton/polyester.