32 Things You Need to Know Before Doing the Mount Everest Base Camp Trek

Buffs are a lifesaver on the mountain. Not only do they keep the sun off your forehead, they also keep your hair (and sweat) out of your face, your ears warm from the cold, and, when you wear them around your nose and mouth, they keep the dust out of your lungs. I only brought two, and I really wish I brought more, especially a thick one for those extracold days.