Airhole Balaclava Hinge Merino The  Balaclava Merino offers unmatched versatility and natural comfort for cold-weather pursuits. Featuring a hinged design that provides ergonomic coverage while allowing for easy adjustment, this balaclava is made from a Merino wool blend that excels in heat regulation, moisture control, and odor prevention. The soft, breathable fabric moves with you, providing warmth without overheating, so you can stay focused on your adventure.