The Copper Wear Reusable Face Mask is a 2-layer mask for men and women with an adjustable size that fits almost anyone; copper infused fabric features an inner layer (90% nylon and 10% elastane) and an outer layer (90% nylon and 10% elastane); sleek unisex black mask features copper woven into the fibers to help reduce odour and strengthen the mask for long-lasting durability; Fashionable protective masks with contoured design that fit close to your face for comfortable and breathable all-day adult wear.