I love the Buff!
The Buff is my go-to head piece year-round. It's tubular shape made of thin, stretchy, seamless synthetic fabric hugs your head and works to wick any sweat while keeping sun and wind at bay. I use my buff in the summer as a head band while running or under my helmet on the bike. In the fall it works well as a hat and in the winter, as a balaclava, it provides just the right amount of warmth.
Lightweight and totally multi-functional, a must have for any outdoor buff!