Mucros Irish Cap Wool Tweed Charcoal Herringbone Made in Ireland Mucros Irish cap features a charcoal/black herringbone with a complementary red plaid pattern. Made from 100% wool tweed with a quilted polyester lining. Dry clean only. Small (7) = 57cm or 22 , Medium (7 ) = 59cm or 23 , Large (7 ) = 61cm or 24, and XL (8) = 65cm or 25 . Elastic sides allow for a secure, not tight fit.