1998 St. Louis Cardinals Mark McGwire New Era Fitted Hat sz 7 3/8 (This particular hat fits true to size). McGwire won the homerun derby in 1998 in Coors Field All Star Game. Hat is in used condition, normal wear and tear present, the brim is a little flimsy but holds shape, and the sweatband is yellowed. The exact specifications and material worn by players on field during the 1998 All Star Game in Denver, Colorado. 100% authentic, 100% original hat from 1998, 100% wool, MADE IN USA. All hats will be shipped in a box to prevent damage.