The Force 9 Sombrero features a double-layer, 70-denier taslan GORE-TEX crown offering total waterproof, breathable protection and exceptional moisture-wicking properties. The rigid, 100\\% nylon brim stays flat during high winds, and its foam lining allows it to float. The lightweight 100\\% polyester tricot lining feels extra-soft next to the skin. The sombrero is fully seam-taped to further keep out moisture. The removable chin cord with buckle closure and dual anchor points offer a secure fit in high winds. Magnets secure the brim to the dome. Rear crown vent. External adjustment. The brim measures 3" in the front and on the sides, and 3-3/4" in back. Imported.