We have little babes too and understand most things never stay clean for too long. We definitely want you to get the most out of your hats, so here's some general washing tips.
Do not put into the laundry - either the washer or dryer.
Do not use the dishwasher - dishwasher detergents often include bleach, and the appliance usually runs at high heat (both for washing and drying), which can damage the hat.
Hand-washing is really the best method to maintain both the colour and shape of the hat.
We love this article and found it super helpful. How To Clean A Baseball Cap