Have you looked at anything in the Akubra line of hats? I’ve had my Akubra’s in downpours, no issues at all after I allowed them to dry naturally. Great price point as well.I suppose it's possible I'll outgrow the problem, but I'm skeptical. Probably have to stretch my neck another 6 inches or so to clear the seat.
Meanwhile, does anybody know of a crushable fur felt? Or perhaps a LiteFelt crushable that won't stain in a sprinkle?