What is the most logical next event?

How to clean a black hat
Check the care-label.
Always start by checking the manufacturer's instructions regarding cleaning for your particular hat. Expect different hats to be made of different materials, some of which are more easily damaged by water and/or scrubbing.

Pick your answer from: (I). For example, hats made with laminate, vinyl, chalkboard, and or repurposed metal can be better brushed. Look for hats made from different metals, such as aluminum, iron, and eggshell, but these can be less expensive, but may not go over the guidelines.. (II). If your hat is made of multiple materials, consider cleaning it through multiple washes. Observe the shape of the head and neck.. (III). In general, cleaning the hat will only be done if it is specifically made of polyethylene. If you are unsure as to what materials are beneficial, talk to the manufacturer and ask.. (IV). If the care label is missing or unreadable, contact the manufacturer if possible. Otherwise, assume that it's made of fragile materials..
(IV).