Protect yourself from extreme cold weather. wind. and debris with Polar Fleece Neck Warmer. The versatile neck warmer can be worn in many different ways. such as a standard neck gaiter. open balaclava. or a half-face mask allowing you to protect not only your neck but your mouth and ears as well in freezing weather conditions. Constructed of 100% polyester fleece. the neck tube is lightweight and breathable. Perfect for military personnel and outdoor activities including running. snowboarding and more.