Rapha, nice but a bit pricey?

I've got a Barbour waxed cotton flat cap, bought to keep my noggin dry but when I wear it, I sweat like Gary Glitter in a bungle outfit on a bouncy castle at a My Little Pony convention. I have concerns about the breath-ability of such a cap unless it was the absolute dead of winter.

best sweat metaphor in a long time!

+1 ON wax jacket though they are super warm and defiantly not breathable, but they are tough.