Vintage styling. Stitched ventilation eyelets. Unisex design. Sweatband circumference 58 cm (S/M) or 60 cm (L/XL). Outer brim... Vintage styling. Stitched ventilation eyelets. Unisex design. Sweatband circumference 58 cm (S/M) or 60 cm (L/XL). Outer brim circumference 78 cm (S/M) or 81 cm (L/XL).