Mucros Weavers Men&rsquo;s Wool Driving Cap Brown Plaid Made in Ireland Wool driving cap crafted from 100% wool for a warm and durable cap. Irish hats for men feature a 100% polyester lining for a comfortable wear. This cap is available in sizes: Small (7) = 22 , Medium (7 ) = 23 , Large (7 ) = 24, and XL (8) = 25 . Made in Co. Kerry, Ireland by Mucros Weavers.