Cap gavroche out of chestnut. Single size with a rubber band on the back of the cap.
Lavage with the hand: to let soak your hat in water soapy (30°), rinse with large water, while smoothing with the dish of the hand. Extend it without drying it (just a pin with the errière of the hat), not to twist it, nor to fold or to dry the chapeau.
During drying, you can make it turn around your fist to give it in forme.
sharpening is not necessary, you can do it with iron doux.