It doesn't seem that a buff would work very well for the head for cycling. Too much material to deal with under the helmet. But as a neck gaitor it would be very useful.
I think it's better to utilize the helmet as an insulator since it's already there. To do that in the cold all you need is a helmet cover and a thin scull cap.
Or I also use a freeride bike helmet in winter which has less ventilation holes and comes down in the back. Very warm with thin scull cap underneath even without a cover.
If you happen to ride without a helmet in winter a multi layered buff wrapped around the head and ears with the top open to breath may work well. But then you haven't got the protection of the helmet.
However, if you are a woman with very thick long hair it may be a good method of head covering. Very popular among woman skiers.
Last edited by Hezz; 12-30-06 at 07:09 PM.