Specialised do a range with a hair port on the back. The ratchet strap can be raised/lowered to accommodate hair.
Definitely for the wife - see, no ponytail on this nut!Wife. Right. Get a haircut, hippy.
This. I have my hair tied up comfortably in a full face, just tie it up loose lower down.I've had pony tails on and off for years, you just have to tie it a bit lower so the helmet is above the hair tie.