Baseball caps are okay for lizards, as they do not have ears that protrude in the sun. Maybe American lizards only. I note that the cape town Morgan club produce their own springbok or whatever skin flying helmet for winter. For summer, being in Oz, I prefer a pith helmet. I have the type that covers my ears from sunburn well, acts as a good sun visor, and shield the back of my neck from wind and sun too. Also, with sunglasses on, no-one recognises who the clown is driving in a pith helmet.Works in rain too.
The leader of the Opposition has been warned by isadora not to wear scarves, but has taken to wearing a shower cap under a bonnet as it does not squish her hair.
I landed a lovely pith for her from NZ, made in Vietnam, for $33 Aust dollars too.