Wool Blend Plaid Winter Ivy Cap, Irish Driving Hat w/ Adjustable Hat Sizing Tape 30% Wool, 70% Polyester One Size Fit (up to 24 inches) with Elastafit hidden elastic in back to ensure a comfortable fit Includes FREE Hat Sizing Tape w/ Simple Instructions  Use to reduce size, if fit is too loose Traditional Flat Cap - 6 Panel unstructured design with attached front brim Plaid print wool blend exterior  Interior lined in black fabric & features lightly padded sweatband Makes a great gift, Fits even large size heads (apprx. 60cm, 24in), Available for limited time only