Stay comfortable and warm in all conditions
A neck warmer is also called a buff, but that is not always true. You put a buff over your head, but keep your face free. A neck warmer really focuses on the neck and chin up to just over the nose.
The neck warmers made of merino wool are extra nice. This wool ensures efficient sweat removal and is very breathable. This material also allows you to breathe well, so the gaiter can be worn over the mouth and nose without any problems. This wool also does not absorb odors and therefore remains fresh.