What is a buff?

A buff is a type of headgear that is mostly worn as a neck gaiter or a face covering. It is made of a stretchy, breathable material that can be worn in a variety of ways, including as a headband, a hat, a hood or a bandana. Buffs are popular with outdoor enthusiasts, including hikers, runners, cyclists, and skiers, as they offer protection from the sun, wind, and cold. They are also commonly used as an accessory to add style and character to an outfit. The term "Buff" is actually the trademark name of a popular brand that produces such products.