The cap CARHARTT WIP "Porter Cap Chianti" is composed of 27% of wool, 28% of Polyester and 41% of Acrylic. head circumference: 54 - 60 cm / 21.3 - 23.6 inch. Six panel. Flat visor. Embroidered ventilation eyelets. Adjustable leather strap and metal buckle. Graphic embroidery.