The Alpine Onset Merino Balaclava combines the natural anti-odor properties of merino wool and recycled polyester's added durability and moisture management to create an ideal choice for winter layering without overheating. Non-mulesed merino wool and recycled polyester deliver comfort and breathability in spades, while flatlock seams and UPF 30 rating prevent chafing and protect your skin from the sun's UV rays. Worn alone or underneath a helmet for skiing, splitboarding, fat biking, and trail running, the Alpine Onset Merino 150 Balaclava is a breathable, moisture-wicking winter favorite.