Outdoor Research Alpine Onset Merino 150 Balaclava Recycled Materials and Merino Wool For Cold Weather Performance The Alpine Onset Merino 150 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, split boarding, fat biking, and trail running, the Alpine Onset Merino 150 Balaclava is a breathable, moisture-wicking winter favorite. The Alpine Onset Merino 150 Balaclava features lightweight, soft merino wool and recycled polyester that deliver superior breathability, moisture wicking, and cool weather performance for high-tempo activities. Specs Product: #277659 Fabric: 47% Merino Wool (Non-Mulesed) 47% Recycled Polyester (Reprieve) 6% Elastane Jersey (150Gsm) Weight: 2.1 oz/ 59 g Design Features Flatlock Seams Heat Transfer Logo Outdoor Research Alpine Onset Merino 150 Balaclava