This ultra lightweight tube style facemask is purpose built with breathable poly blend fabric for all day comfort and concealment. The Pure 18 Facemask has a contoured fit and is vented around the mouth and nose to increase airflow and reduce fogging on glasses and optics. Can be worn as a neck gaiter when face concealment is not needed. Mouth ventilation holes allows hunters to use mouth/diaphram calls without removing the mask. One size fits most.