This stretch balaclava has one opening and a neck warmer. This combination provides excellent protection from the elements, keeping you warm and comfortable during activities such as skiing, snowboarding, hiking or cycling in cold weather. The neck warmer covers the neck and can be pulled up to cover the chin and mouth for extra protection from cold air. It also provides extra insulation to keep the neck and back of the head warm. Perfect for use under a helmet. 100% polyester.