Made from 100% raffia straw, the hand crocheted construction of our Lolo bucket hat is easy, breezy. Sizing InformationBrim: 3.25"Crown: 3.75"Size: O/S (57cm) with a velcro size adjuster tucked inside the inner sweatband for a customizable fit.Details100% Raffia StrawCare InstructionsHow to clean: Spot clean using a damp cloth and mild soap. Air dry in an area free from direct sunlight.