Merino Wool Balaclava Solid Black: Merino Wool Balaclava ideal for workers who look for a comfortable and 100% natural balaclava made of merino wool. Ideal to practice static jobs in cold conditions. Suitable to be used under helmet. Design: Solid. Size: Adults. Eco-friendly accessory: 100% Merino wool.125 g/m²: Our Lightest Merino Wool version. Tight, comfortable and stretchy: Wear it under a helmet!