Seirus Innovation Dynamax Balaclava - Full Head Face and Neck Protection, Adult Unisex COMPLETE HEAD FACE and NECK PROTECTION - 3-in-1 head protection. Wear as a masque, balaclava and hood all in one DYNAMAX, THE FEEL IS UNREAL - More stretch. More warmth. More wicking. More wind block. Still Thin VERSATILE - Fits under any hat, cap, helmet, or headwear ESSENTIAL EQUIPMENT - A must have Accessory for skiing, snowboarding, and any cold weather outdoor activity