Handle your hat by the brim, and if you must set it right-side ... direction on top and clockwise on the bottom." To remove any light dirt or stains, use "a light touch for 400 grit sandpaper ...

On the underside of the brim, there’s a little plastic box with an LED light showing you the hat is generating a charge. Pull back the attached rubber tabs and you’ll find a USB-A and USB-C ...