New Era Chicago Cubs Major League Baseball Official Batting Practice hat by New Era. 'PERFORMANCE BP FLEX' has style #3930 performance poly pique mesh Flex hat, royal blue crown and visor with royal edges of brim and undervisor, raised embroidered team logo on front, red piping, matching MLB logo on back This is the hat worn during Spring Training and is worn before the games in batting practice. APPROXIMATE SIZES Small 6 7/8-7 1/4 Med-Lg 7 1/4-7 5/8 XLarge 7 5/8 - 8. These PERFORMANCE BP FLEXs are authentic Chicago Cubs hats made by New Era for official MLB - Major League Baseball teams.