OUT OF STOCK. PRE-ORDER FOR DELIVERY THE WEEK OF AUGUST 16th. These masks 3-Ply non-woven polypropylene with an activated carbon layer. Theyare breathable, comfortable and lightweight. You get 6 in a pack, 3 of eash design. Theyare disposable. They aren't medical grade but help reduce the risk of large particles expelled by the wearer such as spit and mucous.