Men's formal black mask. Since we need to wear masks, let's do it in black satin. This a nylon satin mask that is backed by 100% cotton broadcloth. It is machine washable and can go in the dryer. If it needs ironing cover it first with a paper towel and iron on nylon setting, NOT COTTON. The elastic bands are 10" long, thin and easy on the ears. The knot has been left exposed so you can adjust it if you need to - or just slide it into the casing. My masks are handmade in the U.S. with love and concern for humanity. Stay safe!