Mucros Men's Wool Driving Cap Charcoal Herringbone Made in Ireland Wool driving cap crafted from 100% wool and lined with 100% quilted polyester for extra comfort. Cap has a charcoal and black herringbone design with a complementary red plaid pattern. Small (7) = 22 , Medium (7 ) = 23 , Large (7 ) = 24, and XL (8) = 25 . Made by Mucros Weavers in Killarney, Co. Kerry, Ireland.