In reply to MatthewV:
Up to you, but I'd just pick up a snood at literally any outdoor shop. Pull part of the tube down over your scalp, have the rest draped over the back of your neck, and tuck it into a shirt if possible to keep it in place. Helps keep you cool and wicks the sweat off your head too. Helmet compatible.
You can pull the entire thing down over your head and round your neck, but I always find that far too hot.
I wear one of those French foreign legion style baseball caps with the cloth over the neck for hiking, but I reckon the peak might get in the way a bit when climbing.
Needless to say, if you don't look like an albino goth that's died and become a ghost, you're not wearing enough factor 50. Don't let something like that write off your holiday mate.
Post edited at 01:32