3-Ply Cotton Mask. This mask is made from 2 layers of black fabric made of 95%, 150 GSM cotton & 5% spandex and the outside layer is made from white fabric made of 93%, 170 GSM cotton & 7% spandex. This mask is durable, reusable and washable and can be used for anti-pollution, smoke, dust and is windproof making it perfect for the outdoors. Decorate this mask with your 4 color process artwork sublimated over the entire outside layer of the mask.