THIS CAP HAS A PRO FOOTBALL HEATHERED LOOK AND BREATHABLE, STRETCHABLE MESH FOR THE ULTIMATE IN COMFORT AND FIT. ADULT SIZES: S/M (7 1/8-7 3/8), M/L (7 3/8-7 5/8), L/XL (7 5/8-7 7/8). FYI - L/XL (7-5/8 - 7-7/8) IS TOO BIG ON MATT P & PHIL