A common issue for the lovely ladies who accompany their rider on the bike is helmet related hair issues, a solution to your problem may be found in a product called Headsox or similar products.
The Headsox is a light weight seamless sock that can be worn in 12 different ways, from sock under your helmet to maintain your hair style to a neck warmer, dust mask or hair scrunchie. They allow your head to breath, keep you cool or warm as needed.
For the sake of $19.95 it may be the little something that keeps your pillion on the road for longer.
The Happy Wife
Pockey