DetailsAsheville Botanicals has taken a proactive approach in the development of an exclusive design providing superior protection in a fabric face mask with HeiQ Viroblock treatment. Hemp fabric is lightweight, absorbent, and one of the strongest fibers available. Hemp fabric is weather, UV, and mold resistant; providing an excellent choice for outdoor and daily use. It becomes softer with use and exceptionally durable, so able to be washed repeatedly. Hemp is also environmental more friendly than other fibers, using half as much water as cotton to cultivate and does not require the use of chemical pesticides.