Mucros Flat Irish Hat Men's Green Herringbone Made in Ireland Cap features green and black herringbone pattern with a subtle navy and red large plaid design. Irish tweed cap is 100% wool with a 100% polyester quilted lining. Small (7) = 22 ", Medium (7 ) = 23 ", Large (7 ") = 24", and XL (8) = 25 ". Cap is sewn to the bill of hat--no snap. Dry clean only!