HT-304 4 Stich Umpire Hat Moisture Wicking Blend Fabric Made for Baseball & Softball Umpire's 90% Poly - 5% Cotton - 5% Spandex Flex Fit Sizing For All Small 6 3/4 - 7 1/8 Medium 7 1/4 - 7 1/2 Large 7 5/8 - 8 All Styles Available in Black or Navy