ZAN Headgear® Polyester Balaclava. Offers optimal protection from the elements by providing coverage of the head, neck and face. Constructed of 100% stretchy polyester, this balaclava allows for snug, yet comfortable fit. Features two smooth seams, strategically placed to eliminate an irritating pressure point that a center seam may cause when worn under a helmet. ZAN Headgear® Polyester Balaclava boasts vibrant graphics and its contoured design mitigates uncomfortable bunching. One size fits most.