Sun hat, by cap tongue and cap body place form, cap tongue is double deck or above double deck, upper cap tongue can be adhered to go up on lower level sun visor, there is upright arc face behind cap tongue, circle arc face has become level face cap.
The invention can give full play to the shading effect of the visor and various admixtures can be added to make the visor practical, beautiful and increase the use value. After the visor is removed from the upper visor of the visor, it can still be used and cleaned separately.