These masks offer triple-layered protection and are constructed with the highest quality machine-washable combed cotton.Washable/ReusableProtective particle-resistant outer layerPolyester fiber middle layer for particle filtrationUltra-soft & breathable combed-cotton inner layerAdjustable ear loops for fit and comfortFlexible nose clip for the perfect seal3D chin designThese masks are constructed from the highest quality machine-washable combed cotton, with triple-layered protection.Protective cotton outer layerPolyester fiber middle layer for particle filtrationUltra soft & breathable combed-cotton inner layer (FILTERS NOT INCLUDED) Filters available here