Self & Lining: 100% cottonLiner: 100% viscose Made in Italy Do not wash Front embroidered MARNI logo detail Ventilating eyelets at top Adjustable back strap Canvas fabric Brim measures approx 2.5" in lengthOS measures approx 25-27" in circumference Our Style No. MARN-MA28 Manufacturer Style No. CLZC0108S0-UTC311-00N99