Avoid exposure to water and humidity. Straw hats are not meant to be worn in the rain.
If your hat gets wet allow it to dry naturally, try not to distort its shape.
Do not blow-dry or leave exposed to a heat source, as this may shrink the natural fibers in the hat and decrease its size.
To remove any hair or dust use a lint roller or a clean brush with a gentle counter-clockwise motion.
Store the hat in a box in a cool dry place.