GET INTO THE GAME WITHOUT LOSING YOUR COOL. SPACER MESH PANELS ON CAP BACK ALLOW COOLING VENTILATION ON EVEN THE WARMEST DAYS. 100 PERCENT COTTON IN FRONT TWO PANELS; 57/43 POLY/COTTON SPACER MESH IN MID AND BACK PANELS. NEW ERA® SEAM TAPING. YOUTH SIZES: TODDLER/CHILD (6 - 6 3/8), CHILD/YOUTH (6 1/2 - 6 3/4).