These washable and reusable face coverings use your favorite Stormy Kromer flannels on the outside and a solid polycotton twill on the inside. These are not medical grade masks (either N95 or surgical) and should not be used as such. They are meant to provide some level of personal protection when you need to leave your home. Due to the nature of these items, returns are not accepted. 10% of all sales will be donated to the Gogebic Range Health Foundation in Ironwood, Michigan and St. Luke's N.E.W. Life Center in Flint, Michigan. Note: due to inventory constraints, the branded Stormy Kromer label on each mask may vary.