Soft & smooth. Adjustable head strap. This plush and luxurious Sleep Mask is specially designed with an extraordinarily soft combination of cotton and silk that is very easy on delicate eyes and skin. Very effective in blocking out distracting light and visual stimuli. This mask envelops the eyes in velvety darkness and comfort so that the mind is free to rest, relax, and perchance - to dream. Great for: Cat naps; Power naps; Naps on planes, trains & automobiles; A good, full night's rest. Not tested on animals. Environmental friendly. Product of China.