The classic BUFF headwear shape, but with a few extra inches of length for cozy protection, it features the natural moisture management and odor control properties outdoor enthusiasts love most. Made from soft 100% natural Merino wool, the Merino Wool BUFF feels great next to the skin, and it keeps you warm even when it's wet. It's the soft, breathable extra layer of insulation you need for chilly days. Plus, BUFF donates 1% of the proceeds from Merino Wool BUFF to the planet so you can feel warm and fuzzy on the inside too. 100% natural merino wool 12+ ways to wear Merino Wool's natural qualities include: water repellent, odor resistant, flameproof, durability, UV protection and natural stretch and elasticity. Thermal protection from cold & wind Cool in the summer, extra layer of warmth in the winter. Semi-seamless —small, unnoticeable seam on top and bottom of Wool BUFF. Quick drying. One size fits all adults.