Using these wide - brim flat - top hats is easy. Just place the hat on your head and adjust it to a comfortable position. When wearing, be aware of the California Proposition 65 Warning about the chemicals in the product. To maintain these hats, gently brush off any dust or debris regularly. You can spot - clean them with a mild detergent if they get dirty. Avoid using harsh chemicals or machine - washing as it may damage the hat's shape and color.