This mini mask cover the nose to chin and the width of your mouth. The mask has two layers of antibacterial and wicking polyester Jersey (92% Polyester, 8% Spandex). There is a lot to love about this performance fabric. Finished with Chitosan, it is given anti-bacterial and odor resistant properties. Thin and of a medium weight, this breathable knit is fast-drying keeping you comfortable throughout your workout. For flexibility, it boasts a 4-way stretch and contains pill resistant qualities giving your piece lasting power. The mask features a pocket on the inside for an optional filter (not included). A metal clip encased in rubber is in the middle of the mask is riveted in place. Two soft elastic ear loops with an adjustable stopper allows the mask to easily customize the fit to your face.