Take care of this thing like your life depends on it. This is for the dads living that true dad life. So you might play golf, mow the lawn, go for a run, walk the stroller, etc. Just make sure that hat stays fresh.
Do not machine wash, that always ruins hats.
If it does get a bit sweaty or dirty, hand wash under the sink in cold water and hang to dry.
But seriously, take care of this thing!